23. State whether each of the following related-samples t tests is significant for a two-tailed test...
23. State whether each of the following related-samples t tests is significant for a two-tailed test at a .05 level of significance.
t(30) = 3.220
t(12) = 2.346
t(18) = 2.034
t(60) = 1.985
Homework Answers
(1) t(30) = 3.220
The critical value at 0.05 level of significance and 30 df = 2.042
Conclusion: The value of t is greater than critical value of t. Hence we can conclude that t-test is significant.
(2) t(12) = 2.346
The critical value at 0.05 level of significance and 12 df = 2.179
Conclusion: The value of t is greater than critical value of t. Hence we can conclude that t-test is significant.
(3) t(18) = 2.034
The critical value at 0.05 level of significance and 18 df = 2.101
Conclusion: The value of t is less than critical value of t. Hence we can conclude that t-test is not significant.
(4) t(60) = 1.985
The critical value at 0.05 level of significance and 60 df = 2.000
Conclusion: The value of t is less than critical value of t. Hence we can conclude that it is not significant.
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