Refer to the previous exercise. For the 280 African Americans in the 2008 GSS, a 99% confidence interval for the mean of EDUC is (12.38, 13.16). Explain why the following interpretation is incorrect: 99% of all African Americans have completed grades between 12.38 and 13.16.
Answer to relevant QuestionsThe 2008 General Social Survey asked respondents how many sex partners they had in the previous 12 months (variable PARTNERS). Software summarizes the results of the responses by a. Based on the reported sample size and ...For parts a and b, is the statement a null hypothesis, or an alternative hypothesis? a. In Canada, the proportion of adults who favor legalized gambling equals 0.50. b. The proportion of all Canadian college students who are ...It is more informative and potentially less misleading if you conclude a test by reporting and interpreting the P-value rather than by merely indicating whether or not you reject H0 at the 0.05 significance level. One reason ...Suppose you wanted to test H0: p = 0.50, but you had 0 successes in n trials. If you had found the test statistic using the se = √p̂(1 - p̂)/n designed for confidence intervals, show what happens to the test statistic. ...Refer to the previous exercise. a. Explain why the alternative hypothesis of bias against males is Ha: p 6 0.60. b. Show that the P-value for testing H0: p = 0.60 against Ha: p 6 0.60 equals 0.90. Interpret. Why is it large?
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