< > VC MyLab and Mastering STA 2023: ONLINE (CRN: 20209) Homework: HW 22: Two Samp Mean Dep Hyp Test - Sigma Unknown Question list Question 1 K Course Home mylab.pearson.com + P Do Homework HW 22: Two Samp Mean Dep Hyp Test... Homework Help - Q&A from Online Tutors - Course Hero Valeria Ortiz 04/07/23 9:14 PM Question 6, 8.3.11-T Part 1 of 7 > HW Score: 42.28%, 2.96 of 7 points Points: 0 of 1 Save A researcher claims that a post-lunch nap decreases the amount of time it takes males to sprint 20 meters after a night with only 4 hours of sleep. The table shows the amounts of time (in seconds) it took for 10 males to sprint 20 meters after a night with only 4 hours of sleep when they did not take a post-lunch nap and when they did take a post-lunch nap. At = 0.05, is there enough evidence to support the researcher's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. Male 1 2 3 4 5 6 7 8 9 10 | Sprint time (without nap) 4.06 3.92 4.09 4.09 3.97 3.92 4.04 4.08 3.97 4.01 Sprint time (with nap) 3.94 3.85 4.00 4.02 3.95 3.82 3.90 3.93 3.86 3.87 Question 2 */ Question 3 */ Question 4 (a) Identify the claim and state Ho and Ha What is the claim? OA. A night with only 4 hours of sleep decreases the amount of time it takes males to sprint 20 meters. B. A post-lunch nap increases the amount of time it takes males to sprint 20 meters. C. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters. OD. A night with only 4 hours of sleep increases the amount of time it takes males to sprint 20 meters. */ Question 5 Question 6 Question 7 Help me solve this View an example Get more help Clear all Check answer < > VC MyLab and Mastering STA 2023: ONLINE (CRN: 20209) Homework: HW 22: Two Samp Mean Dep Hyp Test - Sigma Unknown Question list Question 1 K Course Home mylab.pearson.com P Do Homework HW 22: Two Samp Mean Dep Hyp Test... Homework Help - Q&A from Online Tutors - Course Hero Valeria Ortiz 04/07/23 9:15 PM Question 7, 8.3.18-T Part 3 of 7 > HW Score: 42.28%, 2.96 of 7 points Points: 0.18 of 1 Save The pass completion percentages of 10 college football quarterbacks for their freshman and sophomore seasons are shown in the table below. At = 0.05, is there enough evidence to support the claim that the pass completion percentages have changed? Complete parts (a) through (e) below. Player 1 2 3 4 5 6 7 8 9 10 Completion percentage (freshman) 68.4 62.5 56.4 59.0 64.8 50.0 57.0 64.4 56.3 58.6 Completion percentage (sophomore) 68.1 58.5 62.1 60.4 63.1 58.2 62.4 63.4 57.7 61.4 Question 2 B. The pass completion percentages have increased. * Question 3 C. The pass completion percentages have not changed. * Question 4 D. The pass completion percentages have decreased. Let d be the hypothesized mean of the differences in the pass completion percentages (freshman - sophomore). Then d is the sample mean of the differences. What are Ho and Ha? A. Ho: d #0 Ha d=0 B. Ho Hd d Ha: d 0 F. Ho Hd Ha Hd Question 6 Ha Hd (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in any answer boxes to complete your choice. (Round to two decimal places as needed.) * Question 7 A. t < or t> B. t> C. t < Help me solve this View an example Get more help Clear all Check answer