Question: A recent poll of 1005 U.S. adults split the sample into four age groups: ages 18-29, 30-49, 50-64, and 65+. In the youngest age group,

A recent poll of 1005 U.S. adults split the sample into four age groups: ages 18-29, 30-49, 50-64, and 65+. In the youngest age group, 62% said that they thought the U.S. was ready for a woman president, as opposed to 35% who said “no, the country was not ready” (3% were undecided). The sample included 250 18- to 29-year-olds.

a) Do you expect the 95% confidence interval for the true proportion of all 18- to 29-year-olds who think the U.S. is ready for a woman president to be wider or narrower than the 95% confidence interval for the true proportion of all U.S. adults? Explain.

b) Find the 95% confidence interval for the true proportion of all 18- to 29-year-olds who believe the U.S. is ready for a woman president.

Step by Step Solution

★★★★★

3.44 Rating (173 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The confidence interval for the true proportion of all 18 to 29year olds who belie... 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)

452-M-S-S-D (928).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

A recent poll of 809 randomly selected registered voters revealed that 426 plan to vote for your candidate in the coming election. a. Is the observed percentage more than 50%? b. Is the observed...

A recent poll of 1,235 randomly sampled likely voters shows your favorite candidate ahead, with 52.1% in favor. There are two candidates. Use hypothesis testing to infer to the larger group of all...

A recent poll of 120 adults who frequent the local farmer's market found that 54 have purchased reusable cloth bags for their groceries, what is the 95% confidence interval for the proportion of...

47. Politics. A poll of 1005 U.S. adults split the sample into four age groups: ages 1829, 3049, 5064, and 65 . In the youngest age group, 62% said that they thought the U.S. was ready for a woman...

1. poll of 1044 U.S. adults split the sample into four age groups: ages 18-29, 30-49, 50-64, and 65+. In the youngest age group, 58% said that they thought the U.S. was ready for a woman president,...

1. d) Does the study show that computer games are a likely cause of rickets?Vitamin D, whether ingested as a dietary supplement or produced naturally when sunlight falls upon the skin, is essential...

A poll of 991 U S adults split the sample into four age groups ages 18 29 30 49 50 64 and 65 In the youngest age group 65 said that they thought the U S was ready for a woman president as opposed to...

A poll of 1058 1058 U.S. adults split the sample into four age?groups: ages?18-29, 30-49,?50-64, and?65+. In the youngest age?group, 60 60 ?% said that they thought the U.S. was ready for a...

Describing Data Once we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical...

2.2 51 Summarizing Data for a Quantitative Variable Exercises Methods 11. Consider the following data. WEB 14 19 24 19 16 20 24 20 file Frequency a. b. SELF test 21 22 24 18 17 23 26 22 23 25 25 19...

With the given mean of 60,000 and standard deviation of 3,000. Required: What is the probability that the sample mean and the population mean , the difference is less or equal to 50 and the sample...

Which of these capital projects funds meet the first criterion for reporting as major funds in the governmental funds financial statements? A.Road fund only B.Road fund and equipment fund only C.Road...

Find the general ( real ) solution of the differential equation: y ' ' + 8 y ' = 2 5 6 sin ( 8 x ) y ( x ) = Find the unique solution that satisfies the initial conditions: y ( 0 ) = 0 and y ' ( 0 )...

Cultural influences often create externalities, for good and ill. A happy movie might make people smile more, which improves the lives of peo- ple who don't see the movie. A fashion trend for...

Consider the following probabilities: P (Ac) = 0.30, P (B) = 0.60, and P (A Bc) = 0.24. Find: a. P (A | Bc) b. P (Bc | A) c. Are A and B independent events? Explain.

Consider the following probabilities: P (A) = 0.40, P (B) = 0.50 and P (Ac Bc) = 0.24. Find: a. P (Ac | Bc) b. P (Ac Bc) c. P (A B)

Survey data, based on 65,000 mobile phone subscribers, shows that 44% of the subscribers use smart-phones (Forbes, December15, 2011). Moreover, 51% of smart-phone users are women. a. Find the...

A stock with an actual return that lies above the security market line has: a return equivalent to the level of risk assumed. less systematic risk than the overall market more risk than that...

Complete the missing cells with the corresponding coordinates.Part A: Complete the missing cells with the corresponding coordinates. Part B: Complete the following algebraic description for the table...

Union Local School District has bonds outstanding with a coupon rate of 3.2 percent paid semiannually and 15 years to maturity. The yield to maturity on these bonds is 3.5 percent and the bonds have...