Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 95 politically conservative voters, r1 = 18 responded yes. Another random sample of n2 = 83 politically moderate voters showed that r2 = 21 responded yes. Does this information indicate that the population proportion of conservative voters inclined to spend more federal tax money on funding the arts is less than the proportion of moderate voters so inclined? Use α = 0.05.
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.)
Would you favor spending more federal tax money on the arts? Of a random sample of...
Would you favor spending more federal tax money on the arts? This question was asked by a research group on behalf of The National Institute of Arts (Reference: Painting by Numbers, J. Wypijewski, University of California Press). Of a random sample of n1=93 politically conservative voters, r1=21 responded yes. Another random sample of n2=83 politically moderate voters showed that r2=22 responded yes. Does this information indicate that the population proportion of conservative voters inclined to spend more federal tax money...
Would you favor spending more federal tax money on the arts? Of a random sample of n = 93 politically conservative voters, 1 = 17 responded yes. Another random sample of n2 = 78 politically moderate voters showed that r2 - 22 responded yes. Does this information indicate that the population proportion of conservative voters inclined to spend more federal tax money on funding the arts is less than the proportion of moderate voters so inclined? Use a = 0.05....
A recent opinion poll of funding for the arts asked, “Would you favor spending more federal tax money on the arts?” In a random sample of 220 women from the U.S., 59 responded ‘yes.’ In a random sample of 175 men from the U.S., 56 responded ‘yes.’ Use these data as follows, to test whether there is any difference in the proportion of men vs. women who favor spending more for the arts: c. From the output, report the test...
Generally speaking, would you say that most people can be trusted? A random sample of n1 = 255 people in Chicago ages 18-25 showed that r1 = 43 said yes. Another random sample of n2 = 270 people in Chicago ages 35-45 showed that r2 = 65 said yes. Does this indicate that the population proportion of trusting people in Chicago is higher for the older group? Use α = 0.05. a)What is the value of the sample test statistic?...
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 = 56 people who are conservative voters showed that r1 = 43 said yes. Another random sample of n2 = 65 people who are liberal voters showed that r2 = 37 said yes. Does this indicate that the population proportion of conservative voters who prefer art with fully...
Adults randomly selected for a poll were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of the subjects surveyed, 308 were in favor, 294 were opposed, and 82 were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin flip. Use a 0.01 significance level to test the claim that the...
Prior to a local election, you would like to estimate the percentage of voters that are in favor of a 4% increase in gasoline sales tax in order to generate enough revenue for street repair. You decide to take a random sample of 400 local voters to see if at least 60% of voters support this initiative. Use this information to answer question 1a to 1e. (Hint: recall that for a Bernoulli random variable, the standard deviation is p(1 –...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
10.6.4 Part 1 A random sample of 500 adult residents of Maricopa County found that 372 were in favor of increasing the highway speed limit to 75 mph, while another sample of 400 adult residents of Pima County found that 288 were in favor of the increased speed limit. Do these data indicate that there is a difference in the support for in increasing the speed limit between the residents of the two counties? Use α = 0.05. (a) Test the hypothesis...
Suppose that 60% of all tax returns lead to a refund. A random sample of a 100 tax returns is taken. a. What is the mean of the distribution of the sample proportion of returns leading to refunds? b. What is the variance of the sample proportion? c. What is the standard error of the sample proportion? d. What is the probability that the sample proportion exceeds 0.65? a. The mean of the distribution of the sample proportion is =...