a university department administers a survey regardring student satisfaction based on the survey results the department provides a confidence interval estimate of 60% to 80% for student satisfaction if the department wishes to construct a confidence interval the more accurate represents the proportion of a student satisfaction how should the design be altered

Answers

Answer 1

Answer:

Change the confidence interval.

Step-by-step explanation:

The confidence interval should be altered . If a 95 % or 90% confidence interval is set then better results can be obtained for student satisfaction.

A 90 or 95  or 99 percent confidence interval will show  a greater range of the data that lies within or without the given criteria.

95 % confidence interval does not mean that the probability is 95% . It means that we are 95% of the data lies  or does not lie within the specific range.

This gives better results as compared to 60- 80 % confidence intervals.

If 95% of the students are satisfied as compared to 60% or 80% , this shows more accuracy.


Related Questions

four ninths plus nine eighteenths :]

Answers

Answer:  17/18

In words, this is seventeen eighteenths

==========================================

Work Shown:

4/9 + 9/18

8/18 + 9/18 ... see note below

(8+9)/18

17/18

----------------

note: To go from 4/9 to 8/18, we multiply top and bottom by 2. So that's why 4/9 = 8/18.

The diagram below shows a visual representation of why 4/9 = 8/18.

In the top row, I've drawn out 9 rectangles of the same size. Then I've shaded 4 of the 9 rectangles to represent the fraction 4/9. In the bottom row, I've cut each of those 9 rectangles into two smaller equal pieces, so we have 9*2 = 18 rectangles now. Note how the shaded regions are the same size, so this shows 4 green regions doubles to 2*4 = 8 yellow regions; therefore 4/9 is the same as 8/18.

Answer: its 17/18

Step-by-step explanation:

hope it help's ヾ(•ω•`)o

What steps are used to solve this equation?


6f = 48


Complete each statement.


First, _____

on both sides of the equation.

Next, simplify the equation to determine that the solution of the equation is

.

Check the solution by substituting

for f and simplifying.

Answers

Answer:

What steps are used to solve this equation?

6f = 48

Complete each statement.

First,

✔ divide by 6

on both sides of the equation.

Next, simplify the equation to determine that the solution of the equation is

✔ f = 8

.

Check the solution by substituting

✔ 8

for f and simplifying.

Step-by-step explanation:

The solution of the given equation would be 8.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

A mathematical equation is a statement with two equal sides and an equal sign in between.

A system of equations is two or more equations that can be solved to get a unique solution and the power of the equation must be in one degree.

We are given the equation as;

6f = 48

We have to Complete each statement.

First, divide by 6 into both sides of the equation.

f = 48/6

Next, simplify the equation to determine that the solution of the equation is

f = 8

Check the solution by substituting for f and simplifying.

6  x8 = 48

Learn more about equations here;

https://brainly.com/question/25180086

#SPJ6

HELP IMMA- FLIP IM DESPERATE

Answers

Answer:

The line that matches the equation y=2x+4 is line e.

Does anyone know the answers this is Gina Wilson

Answers

Answer:yes

Step-by-step explanation:

how do you write 564,000,000 in scientific notation

Answers

Answer:

5.64 x 10 x 8

Step-by-step explanation:

Answer:

5.64 x 10^8

Step-by-step explanation:

since it is a positive number, you’d start the decimal at the beginningeaning the right of the number) and move it all the way to the second to last number to the left. How many times you move the decimal is the exponent.

What is the ratio of 3:6

Answers

Answer:

1:2

Step-by-step explanation:

You didn't really specify, but I'm going to assume you meant as simplified as possible. If you write it as a fraction, it will be ½ or as a decimal it will be 0.5.

Answer:

1:2

Step-by-step explanation:

Simplifying a ratio is like simplifying a fraction.

Simply put the number to the left as the numerator, and the number to the right as the denominator.

In this case, 3/6 = 1/2.

Hence, plug the numbers right back in and you get 1:2.

Hope this helped!

A scale John on the map shows that 1 inch represents 20 miles If 2 cities are 2.5" apart On the map what is the distance between them and real life

Answers

Answer:

50 miles

Step-by-step explanation:

If one inch is 20 miles do 2 times 20 you get 40. it’s .5 so half and half of 20 is ten, add it up and you get 50.

Answer:

50 miles

Step-by-step explanation:

Write an equation of the line that passes through (0, 3) and (−5, 2.5)

Answers

Answer:

y=.1x+3 I think that is the answer

Answer:

y=0.1x+3

Step-by-step explanation:

The slope is 0.1, (Y2-Y1/X2-X1) --> (2.5-3)/(-5-0)= -0.5/-5=0.1

The y-intercept is 3

y=0.1x+3

What is the equation of the line that passes through the point (5,-2) and has a slope of -2/5?​

Answers

Answer:

y= -2/5x -2

Step-by-step explanation:

y = mx + b

jxjxjxjxnxjddjdjdjdjj

Urgent !! To solve a system of equations into y2. Given the following information, find the solution to the system of equations. i. The y-intercepts for the lines are (0,3) and(0,-7) ii. Line 1 has a slope of -3 iii. Line 2 has a slope of 2

Answers

Answer:

i think 2 if not sorry

Step-by-step explanation:

it makes the most  scene to me

Please Help me. Thanks​

Answers

y = 3/2x + 3

I hope this helps!

In a newspaper, it was reported that yearly robberies in Springfield were down 25% to 78 in 2013 from 2012. How many robberies were there in Springfield in 2012?

Answers

There were 30% in 2012 to 2013

Using the table from number seven, if an orphaned pet is picked at random what is the probability that it is a cat?
Please answer ASAP I need to pass this class

Answers

Answer:

22.9%

Step-by-step explanation:

The total at the bottom is 22.9%

Aaron turned on his air conditioning and the temperature in his apartment decreased 6 degrees. Write an integer to represent the change in temperature.

Answers

Answer:

c + 6 degrees= x

Step-by-step explanation:

Find the slope of the line that passes through: (10. 1) and (5.2)​

Answers

Answer:

1/-5 should be the answer

What function graph has the greatest slope?
A. G(x)
B. F(x)
C. J(x)
D. H(x)

Answers

Answer:

Its either C or A

I qould defenetly go with A though..

Find the slope and the y-intercept of the graph of y
-4/5x - 2

Answers

Answer:

slope - (-4/5)

y- intercept - (0,-2)

Step-by-step explanation:

Answer:

the slope is -4/5 and the y intercept is -2

Step-by-step explanation:

HELP Please!!!!!!! Asap

Answers

Answer:

bottom right is correct

Step-by-step explanation:

Can somebody plz answer this question quick and correctly!

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :D

Answers

Answer:

42%

Step-by-step explanation:

100% - 58% = 42%

1. To graph any linear equation in the calculator it needs to be in the slope
y intercept form. What is the slope y-intercept form for the equation
4y – 20x = -8

Answers

Answer:

y=mx+b no judgement i think this is right but i coukldbe completely off

Step-by-step explanation:

Please help

Show work if you can

Thank you!

Answers

Answer:

y= -1/2 + 2

Step-by-step explanation:

To find m or the slope you need to find 2 locations that the line intercepts a point on the graph. I used (0,2) and (2,1).

Then you find the difference of the x and y coordinates. (x,y)

X-coordinates: 0 and 2.    0 - 2 = -2

Y-coordinates: 2 and 1.      2 - 1 = 1

A slope fraction is the difference of y over the difference of x coordinates. It would be written as 1/-2 or -1/2. m= -1/2

To find the b value, just look at the y-intercept or where the line intercepts the y-axis. Which is at (0,2). So b=2

what does 9a-2=12+2a​

Answers

Answer:

a=2

Step-by-step explanation:

Subtract 2a from both sides.

9a−2−2a=12

Combine 9a and −2a to get 7a.

7a−2=12

Add 2 to both sides.

7a=12+2

Add 12 and 2 to get 14.

7a=14

Divide both sides by 7.

a=[tex]\frac{14}{7}[/tex]

Divide 14 by 7 to get 2.

a=2

11) Is the following biconditional true? Explain. Two people are brother and sister if-and-only-if they are siblings.​

Answers

Answer:

Well, not exactly.

Step-by-step explanation: You see, there's this thing called half siblings. They aren't exactly quite any different to normal siblings, except the fact that they either have the same mother and different father, or the same father and different mother. This usually results after a mother and a father divorce, or their respected love one dies, and they have children. The mother/father then can remarry, and when their wife/husband also has a child. The two or more children become half siblings. Also, if we're gonna talk not literal siblings. Close friends often like to think of each other as siblings, though they aren't biologically siblings. Half siblings and step sisters are two different things, half is where your sibling shares half your genes, and step siblings are where they don't have any of your genes and only their respected parent's genes. Now depending on if they mean biologically siblings, I would say true. But if they count all, then it would be false.

TheStudent Government buys sweatshirts for $10 and sells them for $25. Find the percent of increase.

Answers

Answer:

4

Step-by-step explanation:

4444

describe the slope of the line passing through points A(-2,3) and B(4,-3)

Answers

Answer:

0/2 is ZERO is positive

Step-by-step explanation:

slope = y2 - y1 / x2 - x1

slope = -3 - 3 / 4 - (-2)

slope = -6/6

slope = -1

hope this helped :)

i need the answer asap i’ll make you the brainliest

Answers

Answer

the second one

Divide. 5x + 3/5x3 - 22x2 - 40x – 15
The answer is N
(Simplify your answer.)

Answers

Answer:

[tex]n=\frac{386x-75}{5}[/tex]

Step-by-step explanation:

Add like terms

[tex]-35x+3\cdot \frac{3}{5}x-22\cdot \:2x-15=n[/tex]

Add 15 on both sides

[tex]-35x+\frac{9}{5}x-44x-15+15=n+15[/tex]

Simplify

[tex]-35x+\frac{9}{5}x-44x=n+15[/tex]

Multiply sides by 5

[tex]-35x\cdot \:5+\frac{9}{5}x\cdot \:5-44x\cdot \:5=n\cdot \:5+15\cdot \:5[/tex]

Simplify

[tex]-386x=5n+75[/tex]

Divide both sides

[tex]\frac{-386x}{-386}=\frac{5n}{-386}+\frac{75}{-386}[/tex]

You will get

[tex]x=-\frac{5n+75}{386}[/tex]

Then you will solve for n using x

Multiply both sides by 386

[tex]\frac{386\left(5n+75\right)}{386}=386x[/tex]

Simplify

[tex]5n+75=386x[/tex]

Subtraction

[tex]5n+75-75=386x-75[/tex]

Simplify

[tex]5n=386x-75[/tex]

Divide by 5 to get n

[tex]\frac{5n}{5}=\frac{386x}{5}-\frac{75}{5}[/tex]

[tex]n=\frac{386x-75}{5}[/tex]

In ABC, angle A = 30 degree , angle b=45 degree find the angle c​

Answers

Answer:

95 degrees

Step-by-step explanation:

in a triangle angles add up to 180 degrees.

a + b + c = 180

30 + 45 + c = 180

85 + c = 180

c= 180 - 85

c= 95 degrees

Which coordinate pair is a solution of the linear
equation below?
-x - y = -2
Click on the correct answer
(-8,-10)
(8,10)
(-8,10)

Answers

Answer:

The answer is (-8,10).

Your answer is: (-8,10)

Happy holidays!! :)

Find the unit rate. $30 for 2 1/2 hours of work

Answers

Answer:

12$ an hour.

Step-by-step explanation:

Simply set it up as fraction in a way set it as  30/2.5 and divide both values by 2.5 which you get 12 from 30 and 1 from 2.5 there's your unit rate. 12/1 or 12$ an hour.

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