A doctor knows from experience knows that the time for patient to complete a psychological test has an average of 21 minutes and standard deviation of 2 minutes. The shape of the test distribution is symmetric, bell-shaped, and normal. Please make a graph for each part. Use the 68-95-99.7 Empirical rule to find the mid 99.7% quiz completion test ranges. What percentage of the patients will complete the test in more than 22 minutes? a. b. Use z scores: C. Suppose he wants to allow sufficient time so that mid 95% of the patients to complete the test in the allotted time. What is the range of time for the mid 95% of the patients? Find the 75 percentile score for the psychological test. d.

Answers

Answer 1

The 75th percentile score for the psychological test is 22.348 minutes.

We need to find the mid 99.7% quiz completion test ranges and the percentage of patients who will complete the test in more than 22 minutes. Then, we need to determine the range of time for the mid 95% of the patients and the 75th percentile score for the psychological test.

To find the mid 99.7% quiz completion test ranges, we will use the 68-95-99.7 Empirical rule. According to this rule, for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean, 95% of the data falls within two standard deviations of the mean, and 99.7% of the data falls within three standard deviations of the mean.

Therefore, we can calculate the mid 99.7% quiz completion test ranges by adding and subtracting three standard deviations from the mean.

The mean is given as 21 minutes, and the standard deviation is given as 2 minutes. So, the mid 99.7% quiz completion test ranges are 21 ± 3(2) minutes, which gives a range of 15 to 27 minutes.

To find the percentage of patients who will complete the test in more than 22 minutes, we need to calculate the z-score for 22 minutes. The formula for calculating the z-score is (x - μ) / σ, where x is the value we want to find the z-score for, μ is the mean, and σ is the standard deviation.

So, the z-score for 22 minutes is (22 - 21) / 2 = 0.5. From the standard normal distribution table, we can see that the percentage of patients who will complete the test in more than 22 minutes is approximately 30.85%.

To determine the range of time for the mid 95% of the patients, we can use the same empirical rule. The mid 95% of the patients means that the remaining 5% of the data is split between both tails of the distribution. Since the distribution is symmetric, each tail will contain 2.5% of the data. Therefore, we need to find the z-scores that correspond to the 2.5th and 97.5th percentiles of the distribution.

From the standard normal distribution table, we can find that the z-score for the 2.5th percentile is -1.96, and the z-score for the 97.5th percentile is 1.96. Using these z-scores, we can calculate the range of time for the mid 95% of the patients as follows:

Lower range = μ - 1.96σ = 21 - 1.96(2) = 17.08 minutes

Upper range = μ + 1.96σ = 21 + 1.96(2) = 24.92 minutes

To find the 75th percentile score for the psychological test, we can use the z-score formula again. We need to find the z-score that corresponds to the 75th percentile, which is equivalent to saying we need to find the score below which 75% of the data falls. From the standard normal distribution table, we can find that the z-score for the 75th percentile is approximately 0.674.

Using the z-score formula, we can solve for the value of x as follows:

0.674 = (x - 21) / 2

x - 21 = 1.348

x = 22.348 minutes

Therefore, the 75th percentile score for the psychological test is 22.348 minutes.

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Related Questions

why do
do halo-halo stores sprout during summer​

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That is the time and season they sprout
Because of the time and the season

The tendency of a person to catastrophize the extent of loss lowers his blood pressure.

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Answer: What is the question

Explanation:

Imagine that you are working with a team of bioarchaeologists that has just excavated a medieval cemetery site in Italy. The cemetery has over 200 graves, with all sexes and ages represented in the skeletal sample. You are interested in knowing whether there were gender differences in health among members of the medieval community. How would you answer this question using the skeletal remains

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Answer:

By analyzing the pelvis bone (sex determination) and the length of the diaphyseal bone and nonsynovial joints (age determination of non-adult skeletons and adult skeletons, respectively)

Explanation:

Bioarchaeologists are professionals that study human skeletons from archaeological sites. Bioarchaeologists can estimate the age and sex of human skeletons and thus determine the health and dynamics of past human populations. In regard to sex determination, the pelvis is a bone that can be used to estimate the sex of an individual with an accuracy higher than 95%. In regard to the age, characteristics associated with bone growth such as, for example, the length of the diaphyseal bone, can be good indicators to estimate the age of non-adult skeletons, while nonsynovial joints (i.e. joints without a synovial membrane) which are commonly called synarthroses or solid joints, can be used to estimate the age of adult skeletons.

When should the nurse advise a client being prescribed fluoxetine hydrochloride for depression to take the medication

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The nurse should advise the client to take the prescribed fluoxetine hydrochloride for depression at bedtime.

Fluoxetine hydrochloride is an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class that is marketed under the brand names Prozac and Sarafem, among others. Bulimia nervosa, panic disorder, major depressive disorder, obsessive-compulsive disorder (OCD), and premenstrual dysphoric disorder are among the conditions it is used to treat.

fluoxetine hydrochloride is used to treat depression, obsessive-compulsive disorder (OCD), bulimia nervosa, premenstrual dysphoric disorder (PMDD), and panic disorder

Fluoxetine hydrochloride works by increasing the amount of serotonin (a natural substance) in your brain. Serotonin aids in preserving mental stability. Serotonin levels are raised to help with the symptoms of panic attacks, bulimia nervosa, obsessive-compulsive disorder, and sadness.

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A community health nurse is working to address barriers to health care for rural clients. Which area would the nurse most likely identify as a barrier

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A rural area has six or fewer persons per square mile.

The following social determinants are obstacles to healthcare access for rural communities: Higher rates of poverty may make it more challenging for participants to pay for services or programs. Social and cultural expectations for healthy behavior. Low levels of health literacy and incomplete views of health as an obstacle to healthcare.

Educational and linguistic disparities and few options for reliable, inexpensive, or public transportation. unpredictable work schedules or joblessness.  Reduced population density to maximize program economies of scale.

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A ________ is not typically used in the prehospital setting for oxygen administration.

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A  partial re-breather mask is not typically used int he prehospital setting for oxygen administration. It is initiated for variety of reasons.

Increased metabolic demand , maintenance of oxygenation while proving anesthesia. This the most common method for home use and provide flow rate of 2 to 6 liter per minute. Allowing the delivery of oxygen while maintaining the patient's ability to utilize their mouth to talk, eat, etc.

The main purpose is  treatment for patient with acute respiratory failure and those with chronic lung disease and hypoglycemia. The maintain normal hemoglobin saturation so as facilitate normal oxygen delivery to peripheral tissues.

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what is the WHO formula for ORT​

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Answer:

ORS consists of 4 constituents: 1. sodium chloride, 3.5 grams; 2. trisodium citrate, dihydrate, 2.9 grams; 3. potassium chloride, 1.5 grams; 4.

Explanation:

I think .... im not sure though

The risk of getting lung cancer at some point in time in one's life for men who have never smoked is about 13 in 1000. The risk for men who smoke is just over 13 times the risk for non-smokers. What is the approximate lifetime risk of getting lung cancer for men who smoke

Answers

0.169  is the approximate lifetime risk of getting lung cancer for men who smoke.

In the United States, about 10 to 20% of lung cancer cases, or 20,000 to 40,000 lung cancers each year, occur in people who have never smoked or have smoked fewer than 100 cigarettes in their lifetime.

In this case, if we talk about the risk of smokers in terms of the risk of non-smokers, so the baseline risk is the risk for the non-smokers. So the baseline risk for lung cancer in men over an entire lifetime is the risk of lung cancer for men who have never smoked, over their lifetime, which is =0.013

The approximate lifetime risk of getting ling cancer, for male smokers, can be calculated as being 13 times the base risk= 0.169

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Private health insurance is also called
A. individual insurance or non-group insurance.
B. VA Administration Insurance.
C. Schip Third-Party Payor Insurance.
D. Medicode insurance.

Answers

Answer:

Private health insurance is, instead, offered by a private entity instead (most often a for-profit company). You may also hear private health insurance plans called “off-exchange” plans–this means it's a major medical plan

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Answers

Some neuroscientists believe that synchronized activity across different regions of the brain is a sign of conscious awareness.

The two types of information processing that take place in the brain are the type that takes place when a stimulus exceeds a specific threshold of significance and enters conscious awareness. There are billions of neurons in our brains. To carry out certain cognitive functions, like as idea production or movement control, billions of neurons fire.

The peak of these collective electrical signals corresponds to a high in brain activity, and the dip corresponds to a dip in neural activity, much like a wave. It has been speculated that frontal cortex and the extrastriate play a significant role in the expression of conscious awareness.

Therefore, Some neuroscientists believe that synchronized activity across different regions of the brain is a sign of conscious awareness.

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a. arteries
b.veins
c.pipes
d.tubes​

Answers

Answer:

arteries and veins

Explanation:

those two are the answers

Answer:

I think it's veins.

Explanation:

Arteries carry the blood away from the heart and the veins carry the blood back to the heart.

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Nursing assistants can assist residents with normal changes of aging related to the urinary system by helping the residents go to the bathroom frequently.

Nursing assistants complete an education program that is state approved and need to pass their state's competency exam to become licensed.

Hospitals and residential care are the workplaces for nursing assistants. they work in nursing at these places. They are a part of a big care team.

Nursing assistants, help patients in their daily activities like eating, bathing, dressing, etc. They attend to the needs of patients and help them. They also observe and record the conditions of patients.

During aging, there are changes related to the urinary system. People face bladder control issues and cannot hold urine for a much longer time, so nursing assistants can assist residents who face such issues by helping them go to the bathroom frequently.

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Side effects associated with keratolytics include _______

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Answer:

Explanation:

I think so it might be I think so it might be

A pharmacy technician would tell a patient about a contraindication if the patient is taking

nitroglycerin for angina.
warfarin along with aspirin.
a laxative to manage constipation.
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Answer:

pharmacy

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How can olive oil help in preventing and managing diabetes when included in the daily diet? suppose a mechanism.​

Answers

Answer:

The rise in blood sugar levels was much smaller after the meal with extra virgin olive oil than after the meal with corn oil. The findings were consistent with previous studies, which have linked extra virgin olive oil to higher levels of insulin, making it beneficial to people with type 2 diabetes.

Explanation:

Answer:

reduces glucose levels LDL (low density lipoprotien) and triglycerdes

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Dextromethorphan [DXM] is found in products available at your local pharmacy; in high doses it produces dissociative effects.

What is dextromethorphan?Dextromethorphan is a medication most often used as a cough suppressant in over-the-counter cold and cough medicines.It is in the morphinan class of medications with sedative, dissociative, and stimulant properties.Dextromethorphan comes as a liquid-filled capsule, a chewable tablet, a dissolving strip, a solution (liquid), an extended-release (long-acting) suspension (liquid), and a lozenge to take by mouth.It is usually taken every 4 to 12 hours as needed.Dextromethorphan will not treat a cough that is caused by smoking, asthma, or emphysema.Dextromethorphan comes alone and in combination with antihistamines, cough suppressants, and decongestants.Side effects of dextromethorphan at normal therapeutic doses can include: body rash, nausea, vomiting, drowsiness, constipation, sedation, etc.

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Shirya is at the dentist getting a cavity filled. The doctor injects her with a local anesthetic. Which drug did Shirya most likely receive?

lidocaine or procaine
methohexital or lorazepam
lorazepam or procaine
fentanyl or methohexital

Answers

Answer:
Lidocaine
Hope this helps u

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Department of Health and Human Services of the United States.

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It includes other organizations like- The Center for Disease Control, Food and Drug Administration, etc.

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If 3 grams of a drug are contained in 50 mL of solution, write the ratio.

Answers

Answer:

3:50

Explanation:

there are 3 g of a drug in 50 ml of solution, so it is 3/50. In a ratio it looks like this: 3:50

Medicare Part D covers
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B. hospital inpatient stays.
C. physician surgeries.
D. prescription drugs.

Answers

Answer:

D

Explanation:

Medicare Part D, the prescription drug benefit, is the part of Medicare that covers most outpatient prescription drugs.

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Alcohol use prevents the person from being productive at work, which is one need for the diagnosis of alcoholism. The maladaptive behavior approach forms the basis of this criteria.

Maladaptive habits/behavior are ones that make it difficult for a person to cope with new or difficult circumstances. They could start after a major life change, illness, or terrible event. It can also be a behavior pattern that one can develop early. Maladaptive habits can be recognized, and they can be changed for more beneficial ones. If not, they may result in emotional, social, and health issues. There are remedies if things are getting out of hand. One can learn better ways to respond to life's obstacles with the assistance of a trained therapist. Maladaptive behaviors include withdrawal, passive aggressiveness, and avoidance.

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Order: Pfizerpen (penicillin potassium) 200,000 units IM q6h

a) Which concentration is best to administer the dose?

Answers

Answer:

Explanation:

I'm only like 60% sure so you might want to double check this.

Think:

Need 400 mg

Have 100 mg per mL ( Need four times that amount )

Calculate:

Dosage on hand       Dosage desired

                             =

Amount on hand      X Amount desired

Cross multiply  100 mg  400 mg

                          1 mL X  =mL

                          100 X = 400

                          100 X  = 400

Simplify             ----------------------

                          100         100

                          X 4 mL

Withdraw 4 mL of reconstituted Zithromax using 5 mL syringe

Further dilute and give IV

Since single-dose vial, discard any remaining drug

Hopefully this helps!

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basis.

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Answer:

Sorry you got the wrong question

Answer:

autoimmune

Explanation:

took assignment on edge

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The heart rate of the fetus in relation to the contractions is the priority consideration while caring for a mother who is having strong contractions one minute apart.

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Through the use of dental images, the dental radiographer can detect ________ that cannot be detected clinically.

Answers

Through the use of dental images, the dental radiographer can detect diseases, abscesses or cysts that cannot be detected clinically.

Dental radiographer generates the image of a person's teeth which help them to see the proper condition of the teeth properly.

By the use of dental imaging, people are able to find out about diseases, abscesses or cysts, decay in tooth are hidden. With the help of dental imaging, dental radiographer  can find out about developmental abnormalities also.

It also helps in the detection of bone infections, gum infections and diseases. One can identify those defects that are not visible in a visual dental examination.

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In a means-end chain for milk, the calcium content of milk leads to healthier bones, which leads to a display of wisdom and a comfortable life free of osteoporosis. The display of wisdom and a comfortable life component of the means-end chain is the: Group of answer choices

Answers

Answer: Leverage point

Explanation:

The display of wisdom and a comfortable life component of the means-end chain is referred to as the leverage point.

The leverage point simply means a message that is passed by the company to the customers and prospective customers or where the company shows the emotional benefits and the advantages that one gets when the product is bought from them than from other competitors.

HCPCS level II codes are: a. sometimes replaced by HCPCS level III temporary codes. b. intended for use by all private and public health insurers. c. maintained by the AMA's Editorial Board, which makes decisions about additions, revisions, and deletions. d. updated by CMS when necessary, without participation by the HCPCS National Panel.

Answers

Answer:

HCPCS Level II codes are alphanumeric medical procedure codes, primarily for non-physician services such as ambulance services and prosthetic devices,. They represent items, supplies and non-physician services not covered by CPT-4 codes (Level I).

Explanation:

1-Which of the following is a feature of Irreversible Cell Injury:
a) Glycogen stores are depleted
b) Cytoplasmic sodium increases
c) Nuclei undergo karyorrhexis
d) Intracellular pH diminishes
e) Blebs form on cell membranes

Answers

Answer:

Cytoplasmic sodium increase.

Explanation:

Pls mark as brainliest

Answer:

cevap bursa cytoplasmic sodium increases

Is lean good (educational purposes only)

Answers

Always, alwayssssssssss

which of the following is an anesthetic that would be commonly stockpiled and used during a disaster

Answers

Explanation:

A cellular phone network uses towers to

transmit calls. If the equation of the circular area

transmits by the tower is represented by (x-5)2 +

ly-1)2 = 22. Can you identify if you are inside or

outside of the circular area, if your coordinate

location is (6,0)? How about if your location is

(8,2)?

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