Question: A sample of 200 observations selected from a population gave a sample proportion equal to .27. a. Make a 99% confidence interval for p. b.

A sample of 200 observations selected from a population gave a sample proportion equal to .27.
a. Make a 99% confidence interval for p.
b. Construct a 97% confidence interval for p.
c. Make a 90% confidence interval for p.
d. Does the width of the confidence intervals constructed in parts a through c decrease as the confidence level decreases? If yes, explain why.

Step by Step Solution

★★★★★

3.32 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

n 200 p 27 1 p 1 p 1 27 09 sp p n 2773200 03139267 a The 99 confidence interval for p is p zs p 2... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

492-M-S-P-E (607).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A sample of 200 observations selected from a population produced a sample proportion equal to .91. a. Make a 90% confidence interval for p. b. Construct a 95% confidence interval for p. c. Make a 99%...

A sample selected from a population gave a sample proportion equal to .73. a. Make a 99% confidence interval for p assuming n = 100. b. Construct a 99% confidence interval for p assuming n = 600. c....

A sample selected from a population gave a sample proportion equal to .31. a. Make a 95% confidence interval for p assuming n = 1200. b. Construct a 95% confidence interval for p assuming n = 500. c....

8.75 A sample of 200 observations selected from a population gave a sample proportion equal to .27. a. Make a 99% confidence interval for p. b. Construct a 97% confidence interval for p. c. Make a...

8.74 A sample of 200 observations selected from a population produced a sample proportion equal to .91. a. Make a 90% confidence interval for p. b. Construct a 95% confidence interval for p. c. Make...

8.13 The standard deviation for a population is 15.3. A sample of 36 observations selected from this population gave a mean equal to 74.8. a. Make a 90% confidence interval for . b. Construct a 95%...

Suppose, for a random sample selected from a normally distributed population, x = 74.40 ands = 7.2 Round your answers to 2 decimal places. a. Construct a 95% confidence interval for / assuming n =...

8.76 A sample selected from a population gave a sample proportion equal to .73. a. Make a 99% confidence interval for p assuming n 100. b. Construct a 99% confidence interval for p assuming n 600....

A random sample of 1 8 0 observations selected from a population produced a sample proportion equal to 0 . 9 1 . Round your answers to 3 decimal places. a . Make a 9 0 % confidence interval for p . b...

The standard deviation for a population is = 15.3. A sample of 36 observations selected from this population gave a mean equal to 74.8. a. Make a 90% confidence interval for . b. Construct a 95%...

Under constant-pressure conditions a sample of hydrogen gas initially at 88C and 9.6 L is cooled until its final volume is 3.4 L. What is its final temperature?

Using the calories/gram values provided in question 4 and your answer in question 3, convert the typical male and female calories from fat into grams. Assuming this value holds steady for a 75 year...

First make a substitution and then use integration by parts to evaluate the integral. / 2 5 3 cos ( 2 ) d

Form groups of two or three. a. One of you (the explainer) will answer the following question: Why is knowledge management important to organizational success? b. When the first person finishes, the...

a. Complete Table 2 with output values of the function f(x) = 2x. b. Plot the ordered pairs you found in part (a). Then guess the graph of f and sketch it by hand. c. Use your graph to estimate 21/2....

a. Complete Table 3 with output values of the function f(x) = (1/2)x. b. Plot the ordered pairs you found in part (a). Then guess the graph of f and sketch it by hand. c. Use your graph to estimate...

x20 = (n 1)s2-20 Simplify the right-hand side of the statistics formula.

a) Joe verbally agreed with his landlord to a two-year lease for an apartment. Only five months later, the property was sold to somebody else. The new owners gave Joe three months to vacate the...

A client invests $ 1 , 0 0 0 every month, at the beginning of the month, beginning one month from today, for the next twenty five years. The account is expected to earn 4 . 3 5 % , compounded...

What are the three common Boolean operators used to structure a search?