A sample of 61 items provided a sample mean of 932, a sample mode of 900, and a sample standard deviation of 11. Test the following hypotheses using ? = .05. What is your conclusion?
H0: ?2? 80Ha: ?2> 80
What will be an ideal response?
?
| ?2 = 90.75 > 79.082 (p-value is between .005 and .01); reject H0 |
| The population variance is more than 80. |
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