HELP PLEASE TYSMMM !!!!!

Answer:

The 90% confidence interval for the mean score of all takers of this test is between 59.92 and 64.08. The lower end is 59.92, and the upper end is 64.08.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1-0.9}{2} = 0.05[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1-\alpha[/tex].

So it is z with a pvalue of [tex]1-0.05 = 0.95[/tex], so [tex]z = 1.645[/tex]

Now, find the margin of error M as such

[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

[tex]M = 1.645*\frac{4}{\sqrt{10}} = 2.08[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 62 - 2.08 = 59.92

The upper end of the interval is the sample mean added to M. So it is 62 + 2.08 = 64.08.

The 90% confidence interval for the mean score of all takers of this test is between 59.92 and 64.08. The lower end is 59.92, and the upper end is 64.08.

Answer:

5 1/7 or 36/7

Step-by-step explanation:

11 8/7+3 5/1-x=15

12 1/7+8-x=15

12 1/7+8-15=x

20 1/7-15=x

5 1/7=x

Answer:

y = x-4

Step-by-step explanation:

y = -x-5

Slope of line is -1.

Slope of perpendicular to line is 1.

Point-slope equation for line of slope 1 that passes through (6,2):

y-2 = 1(x-6)

Rearrange equation to slope-intercept form:

y = 1(x-6) + 2

y = x-4

Answer:

None

Step-by-step explanation:

They are both the same so they would be equivalent

Answer:

they are equal are you ok?

Step-by-step explanation:

Answer:

BD = c sin A and BD = a sin C.

Therefore, a sin C = c sin A.  

Divide both sides by sin A × sin C to get A/sin A = C/sin C

Step-by-step explanation:

Answer: m=9

Step-by-step explanation: add 16 to both sides, Which gives you 36.Now you have 4m=36 ,so you divide 4 on both sides which gives you 9 .So it is m=4

Step-by-step explanation:

2x-6 = -2 Add 6 to both sides

2x = -2 + -6

2x = -8 Divide both sides by 2

x = -8/2

x = -4 the answer

Answer:

there are 3 dogs and 8 teams

Step-by-step explanation:

Answer: 1.25

Step-by-step explanation: 5 / 4 = 1.25

Step-by-step explanation:

0.92×10^3

I think it helps you

Answer:

n＝2

Step-by-step explanation:

2n＝4

n＝2

Answer:

= 2

Step-by-step explanation:

Please mark brainliest :)

Hope this helps

Have a great day!!

Step-by-step explanation:

-3x+2y=-10

-2(-2x+y=-6)

-3x+2y=-10

4x-2y=12

-3x=-10

4x=12

x=2

Answer:

28° A

Step-by-step explanation:

we have isosceles triangle, which's 2 sides and 2 angles are equal.

we have two equal sides, so another side is base.

base angles are equal, so if E=28 thenG=28 too

Answer:

28 degrees, it A

Step-by-step explanation:

I just took the test

Answer: A,D

Step-by-step explanation:

I took the test

The required simplified value of the given expression is ln[3x³]. Option A is correct.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Given expression,
= 4 lnx + ln 3 - ln x
= ln x⁴ + ln [3 / x]   [since ln a - ln b = ln [a / b]]
= ln [3x⁴/x]     [since lna + ln b = ln ab]
= ln[3x³]

Thus, the required simplified value of the given expression is ln[3x³]. Option A is correct.

Learn more about simplification here:

https://brainly.com/question/12501526

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Answer:

D. Marital status of college students at a university.

Step-by-step explanation:

The mean, as a measure, is appropriate when we are dealing with quantitative measures, that is, the measure that we are dealing with is a number.

In this question:

Options A(age), B(number of pages) and C(income) are all quantitative, so the mean is appropriate.

In Option D, the marital status is a qualitative measure(married, dating, single), so the mean is innapropriate, and this is the answer,

8 is 91 because 13•7 is 91 inside is needed 91 tiles

Answer:

9. 40

Step-by-step explanation:

they are asking for the perimeter

so, 13+7+13+7=40

Answer:

B

Step-by-step explanation:

Answer:

the x terms

Step-by-step explanation:

there is a +x and a -x.

x-x=0,

x will cancel out

Answer:

It should be easy to complete.

Step-by-step explanation:

1/2

The next four multiples of 1/4 are:

1/2, 3/4, 1, 5/4

A number series is a sequence of numbers that follow a specific pattern or rule. The pattern can be based on a mathematical formula or a logical rule, such as adding or subtracting a fixed amount, multiplying or dividing by a constant, or using a combination of operations.

To find the multiples of 1/4, we can multiply it by whole numbers:

1/4 x 1 = 1/4

1/4 x 2 = 2/4 = 1/2

1/4 x 3 = 3/4

1/4 x 4 = 4/4 = 1 (which is equivalent to 4/4)

Therefore, the next four multiples of 1/4 are:

1/2, 3/4, 1, 5/4.

To know more about the number series follow

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Answer:

[tex]CSA = 660cm^2[/tex] --- Curved Surface Area

[tex]TSA = 968cm^2[/tex]  --- Total Surface Area

Step-by-step explanation:

Given

Shape: Cylinder

[tex]h = 15[/tex] -- height

[tex]r = 7[/tex] --- radius

Solving (a): The curved surface area (CSA)

This is calculated as:

[tex]CSA = 2\pi rh[/tex]

This gives:

[tex]CSA = 2 * \frac{22}{7} * 7 * 15[/tex]

[tex]CSA = 2 * 22* 15[/tex]

[tex]CSA = 660cm^2[/tex]

Solving (b): The total surface area (TSA)

This is calculated as:

[tex]TSA = 2\pi r(h + r)[/tex]

This gives:

[tex]TSA = 2 * \frac{22}{7} * 7 * (15 + 7)[/tex]

[tex]TSA = 2 * 22 * (15 + 7)[/tex]

[tex]TSA = 2 * 22 * 22[/tex]

[tex]TSA = 968cm^2[/tex]

Answer:

√ 17

The result can be shown in multiple forms.

Exact Form:

√ 17

Decimal Form:

4.12310562

Step-by-step explanation:

(Use the distance formula to determine the distance between the two points.)

First, substitute the actual values of the points into the distance formula.

Then, just simplify

Don't take my word for it. Hope this helps :)

Answer:

Concept: Area

Answer:

D. 112

Step-by-step explanation:

Answer:

if you add 50 and 62 is the same size of value X it's 112

D

Answer:

c=36p+36

Step-by-step explanation:

Okay so the cost of the meal without tip is $36. To find the tip, we would multiply p by 36. To find our total (c), we would add this (36p) to the original 36.

In other words:

c=36p+36

(can also be written as c=36(1+p) )

Answer:

710

Step-by-step explanation:

Answer:

90

        18(1+4)

          18(5)

           90