Question
In: Statistics and Probability
(a) A study of 4-year college graduates showed that the average graduate had 132 credit hours....
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(a) |
A study of 4-year college graduates showed that the average graduate had 132 credit hours. The following 6 samples of credit hours were recorded from Maryland college's students concerning their credit hours upon graduation: 137, 135, 151, 122, 131, 141 |
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i. |
Calculate the sample mean and sample standard deviation. |
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ii. |
Construct a 95% confidence interval for the population mean number of credit hours for 4-year graduates |
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iii. |
Is there significant evidence to suggest that the average number of credit hours for 4-year graduates is different from 132 credit hours? Test at the 1% significance level. |
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Solutions
orchestra answered 2 years agoRelated Solutions
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