Homework Answers
1)
| mean | 6.88 |
| sd | 1.94 |
| n | 41 |
| lower | 6.38 |
| upper | 7.38 |
| margin of error | 0.50 |
b)
n= (z *sd/e)^2
= (1.645 * 1.94/0.25)^2
= 162.9503
= 163
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Statistics question
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