34.The correct option is (D)
35. The correct option is (C).
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Question 34 (1 point) The average manufacturing work week in metropolitan Chattanooga was 40.1 hours last...
The average manufacturing work week in a particular city was 40.6 hours last year. It is believed that a recession has led to a reduction in the average work week. To test the validity of this belief, which is the correct hypotheses? H0: μ ≥ 40.6 Ha: μ < 40.6 H0: μ < 40.6 Ha: μ ≥ 40.6 H0: μ = 40.6 Ha: μ ≠ 40.6 H0: μ > 40.6 Ha: μ ≤ 40.6
Question 1 (1 point) A statistics professor wants to examine the number of hours that seniors and freshmen study for the final. Specifically, the professor wants to test if the average number of hours that seniors study is greater than the average number of hours that freshmen study. If the seniors are considered group 1 and the freshmen are considered group 2, what are the hypotheses for this scenario? Question 1 options: 1) HO: μ1 ≤ μ2 HA: μ1 >...
Question 1 (1 point) A statistics professor wants to examine the number of hours that seniors and freshmen study for the final. Specifically, the professor wants to test if the average number of hours that seniors study is greater than the average number of hours that freshmen study. If the seniors are considered group 1 and the freshmen are considered group 2, what are the hypotheses for this scenario? Question 1 options: 1) HO: μ1 ≤ μ2 HA: μ1 >...
Question 12 (1 point) 3 Suppose that the average number of hours a PC gamer spends using Steam is 93.38 hours per month. If the distribution of the hours is symmetric (eg. in the plot below), will the median be larger, smaller, or approximately equal to 93.38 6 1.2 Hours on Steam Per Month 1) The median is approximately equal to 93.38. 2) We cannot calculate the median in a symmetric distribution 3) The median is less than 93.38. )We...
Question 5 (1 point) It is believed that students who begin studying for final exams a week before the test score differently than students who wait until the night before. Suppose you want to test the hypothesis that students who study one week before score less than students who study the night before. A hypothesis test for two independent samples is run based on your data and a p-value is calculated to be 2e-04. What is the appropriate conclusion? 1)...
Question 9 (1 point) The owner of a golf course wants to determine if his golf course is more difficult than the one his friend owns. He has 10 golfers play a round of 18 holes on his golf course and records their scores. Later that week, he has the same 10 golfers play a round of golf on his friend's course and records their scores again. The average! difference in the scores (treated as the scores on his course...
Question 17 (1 point) It is reported in USA Today that the average flight cost nationwide is $472.49. You have never paid close to that amount and you want to perform a hypothesis test that the true average is actually less than $472.49. The hypotheses for this situation are as follows: Null Hypothesis: u 2 472.49, Alternative Hypothesis: u < 472.49. If the true average flight cost nationwide is $589.77 and the null hypothesis is rejected, did a type I,...
Question 13 (1 point) Does the average internet speed of an ISP depend on continent? Specifically, you would like to test whether customers in North America have an average internet! download speed that is different from the average download speed of customers in Europe. If North American customers are in group 1 and European customers are in group 2, what are the hypotheses for your test of interest? On Ho H1 = H2 . HAHI + H2 12. Hoilla +...