Assume the population standard deviation is 2.65. Find a 95% confidence interval for your sample mean? Suppose someone with some authority claims the actual population mean is 79. You think the mean is actually less than that. You are to conduct appropriate hypothesis test on the mean using your sample mean. State the null hypothesis Ho:? State the alternative hypothesis Ha:? Use the appropriate test to accept or reject the null hypothesis at alpha = .05 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 727572737169697778737474807175807777737575707277757574757776
Assume the population standard deviation is 2.65. Find a 95% confidence interval for your sample
Suppose someone with some authority claims the actual population mean is 79. You think the mean is actually less than that. You are to conduct appropriate hypothesis test on the mean using your sample mean.
State the null hypothesis Ho:?
State the alternative hypothesis Ha:?
Use the appropriate test to accept or reject the null hypothesis at alpha = .05
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
72
75
72
73
71
69
69
77
78
73
74
74
80
71
75
80
77
77
73
75
75
70
72
77
75
75
74
75
77
76
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