, where n 1-10 ) and n2 = 12, what is a. 1.67 b. 3.90 c. 0.60 d. 4.52 Use the fo
ID: 3357061 • Letter: #
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, where n 1-10 ) and n2 = 12, what is a. 1.67 b. 3.90 c. 0.60 d. 4.52 Use the following scenariofor questions 23, 24 and 25, Use StatCrunch for #24 Julius has conducted a very small study of the amount of sleep his dorm mates get each night. He believes those who are on one of the school's sports teams will get more sleep than those who are not. Julius asked 6 people in his dorm who do not play sports and 6 who do play sports to participate. Because he thinks the number of credit hours a student is taking also might impact sleep habits, he matched each person in the "plays sports" group with a person in the “does not play sports" group who was carrying the same number of hours. The descriptive statistics from his survey are given below. Conduct an appropriate one-tailed i- test in the upper tail using -.05. Plays Sports Sample 1) Does Not Play Sports Sample 2) 23. What is the appropriate t-test? a. Correlated sample t-test b. Independent sample t-test c. Related-samples i-test d. One-sample r-test Neeteb 24. What is the your lobe and what do you conclude? ST C a. tobi 3.05 therefore r(5) - 3.05. pe,05 Reject the null hypothesis b. ote 3.84 therefore (5) 3.84, p>05 Fail to reject the null hypothesis c. tote-3.05 therefore (5) 3.05, p 05 Reject the null hypothesis d. Lae 3.84 therefore (5) -3.84. pc05 Reject the null hypothesisExplanation / Answer
23. The appropriate t test will be related samples t - test because Julius is matching each person in one group with the other person in another group on the basis of same number of hours.
Option C is correct.
24. The statcrunch output for this problem is:
Paired T hypothesis test:
D = 1 - 2 : Mean of the difference between Play Sports (Sample 1) and Does not play sports (Sample 2)
H0 : D = 0
HA : D 0
Hypothesis test results:
Hence,
tobt = 3.05, therefore t(5) = 3.05, p < 0.05, Reject the null hypothesis.
Option a is correct.
Difference Mean Std. Err. DF T-Stat P-value Play Sports (Sample 1) - Does not play sports (Sample 2) 1.8333333 0.60092521 5 3.0508511 0.0284Related Questions
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