HSCI 390 - Bio Statistics » Spring 2020 » Lecture Homework 9

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Question #1
Find the critical t-value(s) for a two related samples t-test given: α = 0.05 df = 5 two-tailed test
A.   3.472
B.   2.571 and -2.571
C.   1.394 and -1.394
D.   -2.990
E.   2.892 and -2.892
Question #2
Find the critical t-value(s) for a two related samples t-test given: α = 0.01 n = 10 two-tailed test
A.   3.250 and -3.250
B.   2.658
C.   1.771 and -1.771
D.   -2.602
E.   2.375 and -2.375
Question #3
What decision you would make regarding the null hypothesis (reject or fail to reject (i.e., retain)) given the following scenario in a two related samples t-test? α = 0.05 p value = 0.013
A.   Fail to reject (i.e., retain) the null hypothesis
B.   Reject the null hypothesis
Question #4
What decision you would make regarding the null hypothesis (reject or fail to reject (i.e., retain)) given the following scenario in a two related samples t-test? α = 0.05 p value = 0.728
A.   Reject the null hypothesis
B.   Fail to reject (i.e., retain) the null hypothesis
Question #5
What decision you would make regarding the null hypothesis (reject or fail to reject (i.e., retain)) given the following scenario in a two related samples t-test? critical t-values = 2.120 and -2.120 calculated test statistic = 3.815
A.   Reject the null hypothesis
B.   Fail to reject (i.e., retain) the null hypothesis

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