STA 3101- (20 pts - 10 pts each) Voters in a particular city who identify themselves with one or the other of twopolitical parties were randomly selected and asked if they favor a proposal to allow citizens with properlicense to carry a concealed handgun in city parks. The results are:Party ASample sizeNumber in favor150Party B20090140For the differenceb) Construct the 90% confidence intervalof the two populations propotions.

The provided information is Party A Party B x1=90…

Answered: (20 pts-10 pts each) Voters in a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Five people (Alex, Byron, Chloe, Dexter, and Emily) form a club, N = {A, B, C, D, E). Chloe and Emily are women, and the others are men. If they choose a president randomly, find the odds against Emily becoming president. The odds against Emily becoming president are to (Type whole numbers.)
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 9% margin of error at a 90% confidence level, what size of sample is needed?
A survey of 300 union members in New York State reveals that 112 favor the Republican candidate for governor. Find the margin of error for a 98% confidence interval for the proportion of all New York State union members who favor the Republican candidate. O a. 0.065 O b. 0.056 O c. 0.506 O d. 0.605
The Salesforce company of a unicorn has various clients associated .The company wants to estimate the proportion of its clients who are associated with more than one company. A random sample of 600 clients is selected without replacement and 125 say that they are associated with more than one company .a. Construct a 99% confidence interval estimate of the population proportion of the clients who have been associated with more than one company
in a public opinion pool 1000 randomly selected persons were asked whether they would vote for candidate x in the next election and 357 replied "yes". the 90% confidence interval for the proportion of the population who would answer "YES" to the same question is?
Independent random samples of 100 east-side residents and 120 west-side residents of a large city were asked whether they will vote for candidate Jones in an upcoming election. Of the 100 east-side residents, 70 said they plan to vote for Jones. Of the 120 west-side residents, 72 said they plan to vote for Jones. In the calculation of a 90% confidence interval for the difference in the proportion of east-side and the proportion of west-side residents that will vote for candidate Jones, which of the following is the margin of error? (A) 1.28 (0.7)(0.3) (0.6)(0.4) 100 120 (B) 1.645 (0.7)(0.3) (0.6)(0.4) 100 120 (C) 1.96 + (0.7)(0.3) (0.6)(0.4) 100 120 142 78 1 1 (D) 1.645 + 220 220 100 120 142 78 1 1 (E) 1.96 + 220 220 100 120
A newspaper article reported that 400 people in one state were surveyed and 70% were opposed to a recent court decision. The same article reported that a similar survey of 500 people in another state indicated opposition by only 40%. Construct a 95% confidence interval of the difference in population proportions based on the data.
A random sample of 1,000 voters was drawn and asked on a bipartisan basis about their voting intentions ahead of the recent animal federal election. A total of 610 people said they would vote for the Cat Party. Calculate the 95% confidence interval for the proportion of voters who intend to vote for the Cat Party. Interpret confidence intervals based on this poll and comment on the chances of the Dog Party returning to power.
A statistics professor at a major university asked her students whether or not they wereregistered to vote. In a sample of 50 of the randomly sampled statistics students (from over1000 students), 35 said they were registered to vote. Find a 98% confidence interval and makea conclusion based upon those results.
A dowser has correctly located water for a well 1 out of 2 times in Jones County. In Jones County, someone who is just guessing has a 40% chance of locating water for a well. Does this sample provide sufficient evidence that the dowser can locate water and is not just guessing?
In a poll of 500 voters in a campaign to eliminate non-returnable beverage containers, 350 of the voters were opposed. Develop a 90% confidence interval estimate for the proportion of all the voters who opposed the container control bill

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