Suppose a certain state university's college of business obtained the following results on the salaries of a recent graduating class:

Finance Majors Business Analytics Majors
n1 = 140 n2 = 30
x1 = $48,237 x2 = $55,417
s1 = $19,000 s2 = $10,000

Required:
a. Formulate hypotheses so that, if the null hypothesis is rejected, we can conclude that salaries for Finance majors are significantly lower than the salaries of Business Analytics majors. Use α = 0.05. (Let μ1 = the population mean salary for Finance majors, and let μ2 = the population mean salary for Business Analytics majors.
b. What is the value of the test statistic?
c. What is the p-value? (Round your answer to four decimal places.)
d. What is your conclusion?

Answers

Answer 1

Answer:

Following are the responses to the given choice:

Step-by-step explanation:

For point a:

[tex]H_0: \mu_1 - \mu_2 = 0\\\\ H_1: \mu_1 - \mu_2 < 0[/tex]

For point b:

[tex]t = -2.953[/tex]

For point c:

[tex]\to p- value = 0.0021[/tex]

For point d:

Reject [tex]H_o[/tex]. It could deduce that the pay of higher banking is considerably lower than the pay of higher project management.


Related Questions

It is a beautiful day at the beach and ten beach volleyball players have shown up at the volleyball courts. Each two-person volleyball team should consist of a setter and a spiker. Five of the players prefer to be a spiker, four of the players prefer to be a setter, and one player is fine either way.

In how many ways can a two-person team be assembled such that no player feels out of position?

Answers

Answer:

4 i think

Step-by-step explanation:

Kayla drives 15 miles in 20 minutes. If she drove one hour in total at the same rat how far did she go? Before you try that problem, answer the question below. How many minutes did Kayla drive in total? ] try
how far did she go in minutes???​

Answers

Answer:

Kayla drove 45miles

Answer: She went 3/4 miles in a minute and 45 miles in an hour

Step-by-step explanation:

15 miles in 20 minutes so 45 miles in 1 hour or 60 minutes

Since 45 miles in 60 minutes, 3/4 miles in a minute

Can you help me on this?

Answers

Answer:

ez 1 + 1 = 1 is the correct answer

Central angle arc length
——————— = ——————
360. 2•3.14• 6



Central angle and arc length are the same which is 105

You and your family are planning a roadtrip. You determine that the distance you need to drive is 660 miles and that you can average 60 miles per hour for the entire trip. How many hours will your trip take?

Answers

Answer:

11 hours

Step-by-step explanation:

Find how many hours the trip will take by dividing the number of miles by the rate in miles per hour:

660/60

= 11

So, the trip will take 11 hours

Solve the equation by using the quadratic formula.
3 x squared minus 1 = 7 x

Answers

Answer:

b.  [tex]\frac{7+\sqrt{61} }{6} ,\frac{7-\sqrt{61} }{6}[/tex]

Step-by-step explanation:

[tex]3x^{2} -1=7x[/tex]

Quadratic equations are suppose to be written as: [tex]ax^2+bx+c=0[/tex]

so the new quadratic equation for this problem will be: [tex]3x^{2} -1-7x=0[/tex]

Now rearrange the terms: [tex]3x^{2} -7x-1=0[/tex]

Then use the Quadratic Formula to Solve for the Quadratic Equation

Quadratic Formula = [tex]x=\frac{-b±}{} \frac{\sqrt{b^2-4ac} }{2a}[/tex]

Note: Ignore the A in the quadratic formula

Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formula.

[tex]3x^{2} -7x-1=0[/tex]

a = 3

b = -7

c = -1

[tex]x=-(-7)±\frac{\sqrt{(-7)^2-4(3)(-1)} }{2(3)}[/tex]

Evaluate The Exponent

[tex]x=\frac{7±\sqrt{(49)-4(3)(-1)} }{2(3)}[/tex]

Multiply The Numbers

[tex]x=\frac{7±\sqrt{49+12} }{2(3)}[/tex]

Add The Numbers

[tex]x=\frac{7±\sqrt{61} }{2(3)}[/tex]

Multiply The Numbers

[tex]x=\frac{7±\sqrt{61} }{6}[/tex]

ANSWER ASAP IM TIMED 30 POINTS

Which shape below will form a tessellation?

A. regular heptagons

B. regular pentagons

C. regular octagons

D. regular hexagons

Answers

Answer:

Step-by-step explanation:

D ANSWER D

Answer:

d

Step-by-step explanation:

Researchers believe that 24.5% of the adults in the United States are obese. A Gallup poll examined the rate of obesity in America with a survey 86,664 randomly sampled U.S. adults. Of the adults surveyed, 23,053 said that they were obese. Is this enough evidence to state that more than 24.5% of all adults in the U.S. are obese

Answers

Answer:

The p-value of the test is 0 < 0.05(standard significance level), which means that this is enough evidence to state that more than 24.5% of all adults in the U.S. are obese

Step-by-step explanation:

Researchers believe that 24.5% of the adults in the United States are obese. Test if there is enough evidence to state that more than 24.5% of all adults in the U.S. are obese.

At the null hypothesis, we test if the proportion is of 24.5% or less, that is:

[tex]H_0: p \leq 0.245[/tex]

At the alternative hypothesis, we test if this proportion is greater than 24.5%, that is:

[tex]H_1: p > 0.245[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.

0.245 is tested at the null hypothesis:

This means that [tex]\mu = 0.245, \sigma = \sqrt{0.245*0.755}[/tex]

Survey 86,664 randomly sampled U.S. adults. Of the adults surveyed, 23,053 said that they were obese.

This means that [tex]n = 86664, X = \frac{23053}{86664} = 0.266[/tex]

Value of the test statistic:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{0.266 - 0.245}{\frac{\sqrt{0.245*0.755}}{\sqrt{86664}}}[/tex]

[tex]z = 14.37[/tex]

P-value of the test and decision:

The p-value of the test is the probability of finding a sample proportion of 0.266 or higher, which is 1 subtracted by the p-value of z = 14.37.

The p-value of z = 14.37 is 1.

1 - 1 = 0

The p-value of the test is 0 < 0.05(standard significance level), which means that this is enough evidence to state that more than 24.5% of all adults in the U.S. are obese

Evaluate the function at the given values of x. Round to 4 decimal places, if necessary. =fx7x

Answers

Step-by-step explanation:

what are the given values of x ?

there is nothing visible.

and what is the function itself ? f(x) = 7x ?

it is not clear.

The data set below provides the monthly rent (in dollars) paid by 5 tenants. 879 , 920 , 940 , 950 , 990 Suppose the rent for one of the tenants changes from $ 940 to $ 1115 . What is the mean before the rent changes? What is the mean after the rent changes?

Answers

Answer:

Mean before the rent changes = $935.8

Mean after the rent changes = $970.8

Step-by-step explanation:

Mean = sum of all data values / number of data values in a given data set

✔️Data set consisting of the rents of 5 tenants: 879 , 920 , 940 , 950 , 990

Mean before the rent changes = (879 + 920 + 940 + 950 + 990)/5 = 4,679/5 = 935.8

Mean before the rent changes = $935.8

✔️If one of the tenants rent changes from $940 to $1,115, the new data set would be:

879 , 920 , 1,115 , 950 , 990

Mean after the rent changes = (879 + 920 + 1,115 + 950 + 990)/5 = 4,854/5 = 970.8

Mean after the rent changes = $970.8

Reflect (-3, 4) across the y-axis. Then reflect the result across the x-axis.

Answers

The formula for reflecting in y-axis: (-x,y)
So, (-3,4) would now be (3,4)
Now the formula for reflecting in the x-axis: (x,-y)
So, (3,4) would now be (3,-4).
Hope this helps !

I need help with this.

Answers

9514 1404 393

Answer:

  $400

Step-by-step explanation:

The word "per" in math often means "divided by". To find price per square foot, find price divided by square feet.

  $700,000/(1750 ft²) = $400 /ft²

The price per square foot of House 4 was $400.

(a)A train completed a journey of 850 kilometres with an average speed of 80 km/hr.
Calculate, giving exact answers, the time taken for this journey in
(1)
hours,
hours, minutes and seconds.
(b)Another train took 10 hours 48 minutes to complete the same 850 km journey.
0 It departed at 19 20.
At what time, on the next day, did thsi train complete the journey?
Calculate the average speed, in kilometres per hour, for the journey.
drintinn​​

Answers

Answer:

a. 850/85 = 10.625 hr or 10 hr 37 min 30 sec

b. 6:08 AM

C. Average time is (10.625 + 10.8)/2 = 10.7125

or 10 hour 42 min 45 sec

draw the graph of y = 3 - 1/2x​

Answers

Answer:

Hope this helps you.

HELP QUICK! WILL GIVE BRAINLIEST ANSWER!!

Answers

Answer:

x = 22 degree

Step-by-step explanation:

40 + 5x + 30 = 180 degree (being linear pair)

5x + 70 = 180

5x = 180 - 70

x = 110/5

x = 22 degree

C=2(y-k) solve for y​

Answers

Answer:

[tex] \blue{y = \dfrac{C + 2k}{2}} [/tex]

Step-by-step explanation:

[tex] C = 2(y - k) [/tex]

[tex] C = 2y - 2k [/tex]

[tex] C + 2k = 2y [/tex]

[tex] \dfrac{C + 2k}{2} = y [/tex]

[tex] y = \dfrac{C + 2k}{2} [/tex]

the average score on mid term examination of 25 students was 78.8 out 100
after the mid term exam, however, a student whose score was 41 out of 100 dropped the course. what is the average (mean) score amount of the 24 students?

Answers

I honestly have no clue good luck I’m just trying to get points so I can use the app

If 5^3b-1 = 5^b-3, what is the value of b?
-2
-1
1
2​

Answers

Answer:

3b-1 = b-3

2b = 4

b = 2

Step-by-step explanation:

I need to know how to solve this completely not just the answers plz :)

Answers

I’m going to be honest, with these, I just straight plug the point into the solution abd which ever solution is true is the answer

US adults consume an average of 3,400 mg of sodium each day. We wanted to find out if a 5 minute health video would help people control their salt intake. After watching the video, the 36 participants in our study had a mean sodium intake of 3,200 mg with a standard deviation of 600 mg. What type of statistical test should we run to find out if there was a difference between our group and the general population

Answers

Answer:

a)  Z Test(n>30)

b)  [tex]t=2.028[/tex]

Step-by-step explanation:

Average [tex]A=3400[/tex]

Mean [tex]\=x=3200[/tex]

Sample size [tex]n=36[/tex]

Standard deviation [tex]\sigma=600mg[/tex]

Generally using the Z Test(n>30)

Generally the equation for Standard Error S.E is mathematically given by

[tex]S.E=\frac{600}{\sqrt{36}}[/tex]}

[tex]S.E=100[/tex]

Generally the equation for Z test is mathematically given by

[tex]Z=\frac{\=x-A}{\sigma\sqrt{n}}[/tex]

[tex]Z=\frac{3200-3400}{600\sqrt{36}}[/tex]

[tex]Z=-2[/tex]

From table

[tex]T critical= (Z,df)[/tex]

Where

[tex]df=n-1[/tex]

[tex]df=35[/tex]

Therefore

[tex]t=2.028[/tex]

Siti had $3249. After donating $1387 to charity, she had $237 less than Hazid. How much money did Hazid have?​

Answers

Answer:

the answer is 2099

Step-by-step explanation:

after donating 1387 the money teft with her is 1862 adding to it 237 so the money with hair will be 2099

please help meeeeeeeee
pt 3

Answers

Answer:

1st option

Step-by-step explanation:

Given the zero product

(x - 3)(x + 5) = 0 , then

x - 3 = 0 ; x + 5 = 0

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

8 feet

Step-by-step explanation:

.................... ............ . ...

Answer:

8 ft

Step-by-step explanation:

Since 2 angles are given as congruent, the opposite sides are congruent.

The opposite sides of the congruent angles are 8 ft and L, so L = 8 ft.

the mathematical model y= 2/x is an example of what variation? Joint variation, inverse variation, indirect variation, linear variation, or direct variation?​

Answers

Answer:

inverse variation

Step-by-step explanation:

Thiis is the model for inverse variation.   As x increases, y decreases, and vice versa.

Typical example:;  y = 5/x

PLS HELP ! THANK YOU

Will mark Brainliest

Answers

the cylinder and sphere !!!!

Answer:

I think. . . sphere? SO SORRY IF IM WRONG!!

Step-by-step explanation:

In the number 1326308 is between which two numbers in a million?

Answers

Answer:

1326308 is in between 1326307 and 1326309

round off 0.38569 to the nearest hundredths.​

Answers

Hi.

The closest rounding of 0,38569 is 0,39

 

Have a nice day !

In a sale, Ali buys a television for $195.80.
The original price was $220.
Calculate the percentage reduction on the original price.

Answers

11%

Hope this helps! :)

______________

Answer:

[tex] \frac{195.80}{220} \times 100 \% \\ = 0.89\%[/tex]

Expand and simplify (n-2)(3n+7) + 2n(2n+3)

Answers

3n^2+7n-6n-14+4n^2+6n= 7n^2+7n-14

Hope that helps and best of wishes!

Which type of stored energy is released when something burns?
O A. Chemical energy
O B. Nuclear energy
O c. Sound energy
O D. Electrical energy​

Answers

Answer:

CHEMICAL ENERGY

Step-by-step explanation:

HOPE THIS ANSWER WAS HELPFUL

MARK AS BRAINLIST PLEASE

IF THIS ANSWER WAS HELP TO YOU

THANKYOU!!

Answer:

Chemical energy

Step-by-step explanation:

did the quiz <3

What is the area of a sector when 0=90° and r= 8/3?

Answers

Answer:

16π/9

Step-by-step explanation:

the area of sector= ¼×π.r²

= ¼× π× (8/3)²

= ¼×64/9×π

= 16π/9

Answer:

Answer:

16π/9

Step-by-step explanation:

the area of sector= ¼×π.r²

= ¼× π× (8/3)²

= ¼×64/9×π

= 16π/9

Step-by-step explanation:

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