Question 911862: Which of the following is NOT one of the five steps in the hypothesis testing procedure?
A. Formulate a decision rule
B. State the null and alternate hypotheses
C. Select a level for β
D. Identify the test statistic
E. All of these are part of the five steps
For a hypothesis comparing two population means, what is the critical value for a one-tailed hypothesis test, using a 5% level of significance level, with both sample sizes equal to 13? Assume the population standard deviations are equal.
A. 1.708
B. 1.711
C. 2.060
D. 2.064
If the null hypothesis that two means are equal is true, where will 97% of the computed z-values lie between?
A. +2.58
B. +2.33
C. +2.17
D. +2.07
For a hypothesis test comparing two population means, the combined degrees of freedom are 24. Which of the following statements about the two sample sizes is NOT true? Assume the population standard deviations are equal.
A. Sample A = 11; sample B = 13
B. Sample A = 12; sample B = 14
C. Sample A = 13; sample B = 13
D. Sample A = 10; sample B = 16
Answer by ewatrrr(24785)   (Show Source):
You can put this solution on YOUR website! E.
five steps in the hypothesis testing
1) State the null and alternate hypotheses
2) Select the appropriate test statistic and level of significance.
3) State the decision rules (critical value for the test-statistic is
determined by the level of significance)
4) Compute the appropriate test statistic and make the decision.
5) Interpret the decision.
.......
invT(.05, 24) = 1.711
.......
invT(.015,24) and invT(.985,24) (± 2.307)
.......
A. Sample A = 11; sample B = 13 NOT true
(11 + 13) - 2 = 22
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