For each hypothesis test you complete, please answer questions (a) through (i) listed below. (a) What conditions should you check first before you con- duct the hypothesis test? (b) Write the null and alternative hypotheses. (c) What type of test are you doing: right-tailed, left-tailed or two-tailed?
For each hypothesis test you complete, please answer questions (a)
through (i) listed below.
(a) What conditions should you check first before you con-
duct the hypothesis test?
(b) Write the null and alternative hypotheses.
(c) What type of test are you doing: right-tailed, left-tailed
or two-tailed?
(d) What formula should be used for the test statistic?
(e) What number is the test statistic equal to?
(f) Sketch a graph of the p-value
(g) What p-value do you obtain? Round to the ten-thousandths.
(h) Do you reject the null hypothesis or fail to reject the
null hypothesis? Explain.
(i) Please write a conclusion sentence, in the context of the
problem, that explains to a lay person the result of the hypothesis
test.
7. In a survey of 175 females ages 16 to 24 who have completed high school during the past 12 months, 72% were enrolled in college. In a survey of 160 males ages 16 to 24 who have completed high school during the past 12 months, 65% were enrolled in college. At α = 0.01, can you reject the claim that there is no difference in the proportion of college enrollees between the two groups?
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