Do you prefer paintings in which the people are fully clothed? This question was asked by a professional survey group on behalf of a national arts organization. A random sample of n1 = 59 people who are conservative voters showed that r1 = 43 said yes. Another random sample of n2 = 63 people who are liberal voters showed that r2 = 36 said yes. Does this indicate that the population proportion of conservative voters who prefer art with fully clothed people is higher? Use α = 0.05. (a) What is the level of significance?   What is the value of the sample test statistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)

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A: Given observed frequency(O) table : Expected frequencies and Test statistics can be calculated as…

Q: the in a large town (voting population over 100,000). An exit poll of 200 voters finds that 104…

A:

Q: Based on information from a previous study, r1 = 37 people out of a random sample of n1 = 97 adult…

A: The provided information are:

Q: A pizza chain advertises that, in recent taste experiment in which their pizza (pizza A) was…

A: Expected value (E) =Total frequency 5

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A:

Q: Do you prefer paintings in which the people are fully clothed? This question was asked by a…

A: Given: n1 = 55  r1 = 44  n2 = 63 r2 = 39  Level of significance = 0.05

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: Given, Nationally, 83% of Americans have earned a high school diploma.  We want to see if the…

Q: se technology to calculate the P-value P-value = (Round to three decimal places as needed.)

A: Given that  Sample size n1=1120 , n2=1048 Sample proportion p1^=0.47 , p2^=0.46

Q: A grocery store manager wants to know if displaying cranberries near the entrance to the store…

A: P1 : Proportion of shoppers who buy Cranberries when they are near the store entrance. P2 :…

Q: A poll stated 36% of people drink coffee to combat midday drowsiness. A recent survey was taken and…

A: Givenn=48x=19p^=xn=1948=0.3958α=0.02

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A: Test statistic results:For testing whether a supplement is effective in helping men lose weight or…

Q: Married People In a specific year 53.7% of men in the United States were married and 50.3% of women…

A: Given: The sample number of men is n1=300. The sample number of women is n2=300 The proportion of…

Q: Two different samples of 21 men are brought into a room and told they are to help another person in…

A:

Q: At Community Hospital, the burn center is experimenting with a new plasma compress treatment. A…

A: The provided information are: Those recieved the plasma compress treatmentx1=266, n1=334Those…

Q: The department of motor vehicles wants to check whether drivers have a slower reaction time after…

A: a) 95% confidence interval was calculated to be (-12.05, -9.95): There is 95% confident that the…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A:

Q: Give the standard error of p under the null hypothesis. Round your answer to 4 decimal places.

A: Given information, Claim: More than 20% of the senior learners smoke. The study involved a random…

Q: Imagine you are interested in the effect of violence in the video games kids play and the level of…

A: Given: One is interested in the effect of violence in the video games kids play and the level of…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: Given that, Sample size n=54 Sample proportion of automobile driver fatalities that involved an…

Q: According to the US Census Bureau in 2021, 23% of children under 18 live with only one parent.…

A: To test whether the percentage of children under 18 living with only one parent in Beacon Hills,…

Q: A poll done for Newsweek found that 15% of Americans have seen or sensed the presence of an angel. A…

A: In statistic, Individual means, a thing on which the characteristics is studied. The total…

Q: c. The test statistic (z v = (please show your answer to 3 decimal places.) d. The p-value = (Please…

A: We have to find test statistics and p value..

Q: A medical device is manufactured in batch sizes of 250. A sample of 25 devices were randomly…

A: The symbol associated with the value of 0.71 is the sample proportion, denoted by "p-hat". In this…

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A:

Q: A new test has been introduced to detect diabetic. If a person has diabetic, there is 85% chance…

A:

Q: n a study assessing helping behavior among college students on their way to class, you recruit 10…

A: Solution: The alternative hypothesis for the given hypothesis test is:H1: At least one of the mean…

Q: Hypertension It has been found that 26% of men 20 years and older suffer from hypertension (high…

A: The test is right tailed.

Q: Based on information from a previous study, r1 = 37 people out of a random sample of n1 = 97 adult…

A: The proportion of adult Americans who did not attend college believe in extraterrestrials is, Thus,…

Q: A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students…

A:

Q: Some boxes of a certain brand of breakfast cereal include a voucher for a free video rental inside…

A:

Q: A recent study claims that 40% of registered voters associate themselves with Democrats. 35% with…

A: There are 5 cases which are named as democrats, republicans, independent, green party and social…

Q: An antidepressant has historically been known to relieve depression for 65% of patients who use the…

A: Givenn=250x=143p^=xn=143250=0.572α=0.05

Q: Night Owls - A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours…

A: Given that:  population proportion(p)=0.40 x=77 n=215

Q: Twenty years​ ago, 51​%of parents of children in high school felt it was a serious problem that high…

A:

Q: What is the p value for the following scenario: Out of 300 male inpatients, there are 195 that have…

A: Given that  n1 = 300 , X1 = 195 , n2 = 450 , X2 = 205

Q: At Community Hospital, the burn center is experimenting with a new plasma compress treatment. A…

A: Given that  p1 be the population proportion of all patients with minor burns receiving the plasma…

Q: Identify the claim and state H, and Ha The claim is "the proportion of adults in Country B who favor…

A: We have given that the data of four countries A, B, C and D. Here, the claim is two-tailed or…

Q: Compute the 95% cofidence interval for the % of the pop. that will like the cereal. Interept this…

A: Given: Sample size n = 500

Q: Is the proportion of wildfires caused by humans in the south different from the proportion of…

A: Let, X1: The number of wildfires caused by humans in the south. X2: The number of wildfires caused…

Q: In the nursing home study mentioned in the chapter-opening Statistics Today, the researchers found…

A: State the hypotheses.

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.