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 a = 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. 1 2 3 4 5 6 7 8 9 10 3.91 3.91 3.98 3.97 4.08 4.05 4.04 4.04 4.01 4.09 3.76 3.85 3.92 3.90 4.06 3.92 3.91 3.91 3.92 3.97 Male Sprint time (without nap) Sprint time (with nap) (a) Identify the claim and state Ho and H₂- 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. OB. A night with only 4 hours of sleep increases the amount of time it takes males to sprint 20 meters. OC. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters. OD. A post-lunch nap increases the amount of time it takes males to sprint 20 meters. + Let Ha be the hypothesized mean of the difference in the sprint times (without nap -with nap). What are Ho and H₂? Hd OA. Ho: Pd=0 Ha: Hd #0 OD. Ho: Ha 50 Ha: Hd>0 OB. Ho: Hd #0 Ha: Hd=0 OE. Ho: Hd 20 Ha: Hd <0 (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.) OC. Ho: Hd zd Hai Hd
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 a = 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. 1 2 3 4 5 6 7 8 9 10 3.91 3.91 3.98 3.97 4.08 4.05 4.04 4.04 4.01 4.09 3.76 3.85 3.92 3.90 4.06 3.92 3.91 3.91 3.92 3.97 Male Sprint time (without nap) Sprint time (with nap) (a) Identify the claim and state Ho and H₂- 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. OB. A night with only 4 hours of sleep increases the amount of time it takes males to sprint 20 meters. OC. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters. OD. A post-lunch nap increases the amount of time it takes males to sprint 20 meters. + Let Ha be the hypothesized mean of the difference in the sprint times (without nap -with nap). What are Ho and H₂? Hd OA. Ho: Pd=0 Ha: Hd #0 OD. Ho: Ha 50 Ha: Hd>0 OB. Ho: Hd #0 Ha: Hd=0 OE. Ho: Hd 20 Ha: Hd <0 (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.) OC. Ho: Hd zd Hai Hd
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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