Assume you do not know the population standard deviation, find the 95% confidence interval for your sample mean? Suppose the population mean is 74. Would the value fall within your confidence interval ? What percent of the time might it not fall within your confidence interval? _______% Suppose the null hypothesis is that the mean is 74 and the alternative hypothesis is that it is not equal to 74. State the null hypothesis Ho:? State the alternative hypothesis Ha:? Use the appropriate test to accept or reject the null hypothesis at alpha = .01 What hypothesis test did you use (z-test, t-test, 1-proportion z-test)? Enter your test statistic : ? Sketch appropriate curve and label your critical values and your test statistic: ? Data below 757376717174787777767573717971767378697469757476737071767276
Assume you do not know the population standard deviation, find the 95% confidence interval for your sample
Suppose the population mean is 74. Would the value fall within your confidence interval ?
What percent of the time might it not fall within your confidence interval? _______%
Suppose the null hypothesis is that the mean is 74 and the alternative hypothesis is that it is not equal to 74.
State the null hypothesis Ho:?
State the alternative hypothesis Ha:?
Use the appropriate test to accept or reject the null hypothesis at alpha = .01
What hypothesis test did you use (z-test, t-test, 1-proportion z-test)?
Enter your test statistic : ?
Sketch appropriate curve and label your critical values and your test statistic: ?
Data below
75
73
76
71
71
74
78
77
77
76
75
73
71
79
71
76
73
78
69
74
69
75
74
76
73
70
71
76
72
76
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