Answer ANY 4 of the 5 pages. 5 A Pew Research Center poll asked randomly selected...
A random sample of 400 men and 400 women was randomly selected and asked whether they planned to attend a concert in the next month. The results are listed below. Perform a homogeneity of proportions test to test the claim that the proportion of men who plan to attend a concert in the next month is the same as the proportion of women who plan to attend a concert in the next month. Use α = 0.05 Men Women Plan...
A random sample of 400 men and 400 women was randomly selected and asked whether they planned to attend a concert in the next month. The results are listed below. Perform a homogeneity of proportions test to test the claim that the proportion of men who plan to attend a concert in the next month is the same as the proportion of women who plan to attend a concert in the next month. Use ? = 0.05. Men Women Plan...
5. Based on a Pew Research report on dating in the digital age from May 8,2020, 1,199 of 2,351 men who use social media have checked up on their exes via social media and 1,352 of 2,504 women who use social media have checked up on their exes via social media. https://www.pewresearch.org/internet/2020/05/08/dating-and-relationships-in-the digitalare/ (a) Test, at the 5% level, to see if there is a significant difference in the proportion that use social media to check up on their exes...
Suppose a survey is conducted of UCI college students on how recent increases in tuition are adding to students' stress levels. Assume 29 of the 50 UCI students surveyed said they have difficulty paying their tuition each quarter. Let p represent the population proportion of all UCI students who have difficulty paying their tuition each quarter. Which are the appropriate hypotheses to assess if a MAJORITY of UCI students are having difficulty paying their tuition? Test the claim at the...
JLuuuuuU24514003050lb/do Question 9 Background: Primary Cook According to the Pew Research Center, men and women in a household often share chores, with women more likely to do the cooking than men. As part of a follow-up study, one random sample of couples (comprised of one man and one woman) without children was selected and an independent random sample of couples (comprised of one man and one woman) with children was taken. For each household, the question was asked 'Who cooks...
A pharmaceutical company believes its Alzheimer’s drug may have an effect on cortical atrophy. If it decreases cortical atrophy, it may be a promising candidate for further drug trials; if it increases cortical atrophy, it may provide insight into the mechanism of Alzheimer’s disease. Thus the company decides to test the drug on rats, as either result may hold future benefits. Among 115 transgenic rats (genetically engineered to induce Alzheimer’s), 65 rats receive the drug over 6 months, 50 rats...