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 = 0.01, 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. 2 34 5 6 7 8 9 10 1 3.99 3.93 4.02 4.08 3.94 3.96 4.05 3.96 4.09 4.08 3.98 3.94 3.99 4.09 3.93 3.93 4.04 3.94 4.08 4.07 Male Sprint time (without nap) Sprint time (with nap) (a) Identify the claim and state Ho and Ha What is the claim? ... OA. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters. OB. A night with only 4 hours of sleep decreases the amount of time it takes males to sprint 20 meters. OC. A night with only 4 hours of sleep increases 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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
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Need the claim, hypothesis, crit value(s), rejection regions, d, Sd, t test, reject or fail to, and conclusion.
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 = 0.01, 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.
1
2
3
4
5
6
7
8
9
10 D
3.99 3.93 4.02 4.08 3.94 3.96 4.05 3.96 4.09 4.08
3.98 3.94 3.99 4.09 3.93 3.93 4.04 3.94 4.08 4.07
Male
Sprint time (without
nap)
Sprint time (with nap)
(a) Identify the claim and state Ho and Ha-
What is the claim?
C
OA. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters.
OB. A night with only 4 hours of sleep decreases the amount of time it takes males to sprint 20 meters.
OC. A night with only 4 hours of sleep increases 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.
Transcribed Image Text: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 = 0.01, 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. 1 2 3 4 5 6 7 8 9 10 D 3.99 3.93 4.02 4.08 3.94 3.96 4.05 3.96 4.09 4.08 3.98 3.94 3.99 4.09 3.93 3.93 4.04 3.94 4.08 4.07 Male Sprint time (without nap) Sprint time (with nap) (a) Identify the claim and state Ho and Ha- What is the claim? C OA. A post-lunch nap decreases the amount of time it takes males to sprint 20 meters. OB. A night with only 4 hours of sleep decreases the amount of time it takes males to sprint 20 meters. OC. A night with only 4 hours of sleep increases 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.
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