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Question 9 Your answer is CORRECT. Refer to the information given in question 8. Part b : State the rejection region. a) z > 1.645 b) z > 1.960 c) z < 1.645 d) z < 1.960 e) z < −1.282 or z > 1.282
Question 10 Your answer is CORRECT. Refer to the information given in question 8. Part c : Calculate the test statistic.
Question 11 Your answer is CORRECT. Refer to the information given in question 8. Part d : Determine the P-value for your test.
12/10/2016 Print Test d) p -value = 0.112 e) p -value = 0.002 Question 12 Your answer is CORRECT. Refer to the information given in question 8. Part e : State your conclusion for your hypothesis test. a) There is not enough information to make a conclusion. b) Reject the null hypothesis which states which states that the world's population of left handed people is 8% in favor of the alternate which states it is actually higher. c) Fail to reject the null hypothesis. There is not enough evidence to conclude that the proportion of left handers is higher than 8%. Question 13 Your answer is CORRECT. Use the following information to answer questions 13-17: The belief is that the mean number of hours per week of part-time work of high school seniors in a city is 10.7 hours. Data from a simple random sample of 24 high school seniors indicated that their mean number of part-time work was 11.6 with a standard deviation of 1.4. Test whether these data cast doubt on the current belief. (use α = 0.05) Part a : State your null and alternative hypotheses.
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