16. Find the value of b so that f(x² — 9)dx = −36. A) 3 B) -9 C) 9 D) -3 E) 0 F) None of the above.

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 lable snoWS 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 dic take a post-lunch nap. At a = 0.01, 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. 7 10 Male Sprint time (without nap) Sprint time (with nap) 1 2 3 4 3.98 3.92 4.09 3.93 4.06 4.01 4.03 4.09 4.01 3.96 3.84 3.85 4.00 3.88 4.04 3.88 3.87 3.97 3.92 3.82 (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 three decimal places as needed.) O A. t O B. t 2.821 (c) Calculate d and sg. d = 0.101 (Round to three decimal…

Due in 3 hours, 41 minutes. Due Sat 04/18/2020 11:59 pm Show Intro/Instructions A regression was run to determine if there is a relationship between hours of study per week (x) and the final exam scores (y). The results of the regression were: у-ах+b a=6.704 b=30.59 p2=0.972196 r=0.986 Use this to predict the final exam score of a student who studies 8.5 hours per week, and please round your answer to a whole number. Hint: Help License Points possible: 1 This is attempt 1 of 3. Message instructor about this question Submit

LOG Take Test Unit 3 Test d.com/webapps/assessment/take/launch.jsp?course_assessment_id=_415098_1&course_id=_309271_1&new.... Remaining Time: 4 hours, 44 minutes, 03 seconds. Qu Browse Local Files QUESTION 13 Status: A state lottery draws six numbers between 1 and 63. If you wanted to buy every combination possible, how many combinations are there? QUESTION 14 Match each scenario with the counting rule that would be used to solve it. 5 point 4 poin