According to the Pew Research Center, 14% of adults rate basketball as their favorite sport. Your boss believes the proportion may be lower among adults over age 65, and wants you to collect evidence to see if this is true. You take a survey of adults over age 65, and only 12 out of 120 of them rate basketball as their favorite sport. You would like to set �=0.05. What do you conclude? Group of answer choices Reject the null hypothesis because the test statistic is less than the critical value. Fail the reject the null hypothesis because the test statistic is less than the critical value. Fail to reject the null hypothesis because the test statistic is greater than the critical value. Reject the null hypothesis because the test statistic is greater than the critical value. thanks

The school's newspaper reported that the proportion of students majoring in business is more than 30%.  You plan on taking a sample to test this claim.  The correct set of hypotheses is Group of answer choices H0: P < 0.30     Ha: P>=  0.30 H0: P<=  0.30     Ha: P > 0.30 H0: P>=  0.30     Ha: P < 0.30 H0: P > 0.30     Ha: P <= 0.30

A national study report indicated that 20,5% of Americans were identified as having medical bill financial issues. What if a news organization randomly sampled 400 Americans from 10 cities and found that 95 reported having such difficulty. A test was done to investigate whether the problem is MORE SEVERE among these cities. What is the value of the TEST STATISTIC (T.S.)? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a -0.787 1.610 2.479 d 0.787

Your statistics instructor claims that 60 percent of the students who take her Elementary Statistics class go through life feeling more enriched. For some reason that she can't quite figure out, most people don't believe her. You decide to check this out on your own. You randomly survey 64 of her past Elementary Statistics students and find that 36 feel more enriched as a result of her class. Now, what do you think? Conduct a hypothesis test at the 5% level.   a. What is the test statistic?  b. What is the p-value? (Round your answer to four decimal places.) c. Construct a 95% confidence interval for the true proportion. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Round your answers to four decimal places.)