Quinnipiac University Poll is a leading polling organization. In May 2019, it released a survey conducted from May 16 to May 20, 2019 of 1,078 self-identified registered voters. The poll asked a series of questions about a woman’s right to have a legal abortion. Here is question 47: How about when a pregnancy was caused by rape or incest; do you think abortion should be legal in this situation or not? Here are the percentage of respondents, broken out by political affiliation, who support the right of a woman to have an abortion under these conditions.       Republican  Democrat  Independent  Support  68%  92%  83%  Sample Size, n  313  345  323  D)What do the confidence intervals you constructed tell you?              E)What would happen to the confidence intervals if you changed the level of confidence?              F)What would happen to the confidence interval if you increase the sample size?

2. Which source of bias is most relevant to the following situation: A survey ask the following: Should the death penalty be permitted if innocent people might die?

As chairperson of the Rogers County Task Force on Aging, you wish to estimate the proportion of senior citizens in the region who would use a mobile medical check-up program if such a service was implemented. A random sample of 44 senior citizens was polled and it was found that 22 would use such a service. a. Let p represent the proportion of all senior citizens in the region who would utilize the mobile medical check-up program. Find a point estimate for p. (Round result to 3 decimal places.) b. Find a 95% confidence interval for p. (Round results to 3 decimal places.) ? ♥ < c. The Rogers County Director tasks you with doing a larger study, to develop a more precise estimate. The director would like an estimate for the proportion of retired people who would use the mobile medical check-up program that is within 5% of the population percentage, with 95% confidence. Using the original study (described above) as a preliminary estimate for the population proportion p, what is the minimum…

A coach is interested in how many slam dunks the average college seniors at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concludes that college seniors can do an average of 10 slam dunks in a row without missing. a. What is the sample? b. What is the population?

What is the variable of interest? Whether or not a patient is satisfied with the level of care. Whether or not all the patients like the doctor. The sample proportion of patients satisfied with the service Whether or not a patient likes the doctor. The number of patients that are satisfied with the servise

In 2010, the Physicians Foundation conducted a survey of physicians' attitudes about health care reform, saying that the report was "a survey of 100,000 physicians." The survey was sent to 100,000 randomly selected physicians practicing in the United States: 40,000 via post-office mail and 60,000 via email. Assume that a total of 2311 completed surveys were received. O Macmillan Learning What population is sampled in this survey? The population is 100,000 randomly selected physicians practicing in the United States. The population is all physicians. O The population is 2311 physicians that completed surveys. O The population is all physicians practicing in the United States. What is the sample size for this survey? Give your answer as a whole number. n = Could you draw conclusions from this study about all

Among college students, the proportion p who say they're interested in their congressional district's election results has traditionally been 65%. After a series of debates on campuses, a political scientist claims that the proportion of college students who say they're interested in their district's election results is more than 65%. A poll is commissioned, and 178 out of a random sample of 265 college students say they're interested in their district's election results. Is there enough evidence to support the political scientist's claim at the 0.10 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H. p H, :0 H, : (b) Determine the type of test statistic to use. (Choose one) ▼ O=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the…

From the U.S. Census Bureau's American Community Survey in 2019 it was found that 33.13% of United States residents over the age of 25 had an educational attainment of a bachelor's degree or higher. In the District of Columbia, the percentage of residents over the age of 25 who had attained a bachelor's degree or higher was 59.67%. An investigator for the U.S. Census Bureau took a random sample of seven residents from the District of Columbia and asked them their highest educational degree they had obtained. When there is no data set posted for an investigation, open a blank StatCrunch page by clicking "Open StatCrunch" on the StatCrunch home page. a) Verify that the sample from the District of Columbia satisfies the conditions of the binomial experiment. Write one sentence to check each requirement in context of the investigation. b) Assuming the sample from the District of Columbia is a binomial experiment, build the probability distribution in a single table and include the table in…

Steele Electronics Inc. sells expensive brands of stereo equipment in several shopping malls. The marketing research department of Steele reports that 33% of the customers entering the store that indicate they are browsing will, in the end, make a purchase. Let the last 23 customers who enter the store be a sample. a. How many of these customers would you expect to make a purchase? (Round the final answer to the nearest whole number.) Number of customer......... b. What is the probability that exactly five of these customers make a purchase? (Round the final answer to 4 decimal places.) c. What is the probability 13 or more make a purchase? (Round the final answer to 4 decimal places.) d. Does it seem likely at least one will make a purchase ("likely" refers if the probability is more than 70%)? Yes or No

Among college students, the proportion p who say they're interested in their congressional district's election results has traditionally been 65% . After a series of debates on campuses, a political scientist claims that the proportion of college students who say they're interested in their district's election results is more than 65%. A poll is commissioned, and 192 out of a random sample of 265 college students say they're interested in their district's election results. Is there enough evidence to support the political scientist's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H₁. H₂ : H₁ :0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 (d) Find the…