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# P-Value

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Experience raising New Jersey Red chickens revealed the mean weight of the chickens at five
months is 4.35 pounds. The weights follow the normal distribution. In an effort to increase their
weight, a special additive is added to the chicken feed. The subsequent weights of a sample of
five-month-old chickens were (in pounds):
4.41 4.37 4.33 4.35 4.30 4.39 4.36 4.38 4.40 4.39
At the .01 level, has the special additive increased the mean weight of the chickens?
Estimate the p-value.

##### Solution Summary

Experience raising New Jersey Red chickens revealed the mean weight of the chickens at five months is 4.35 pounds. The weights follow the normal distribution. In an effort to increase their weight, a special additive is added to the chicken feed. The subsequent weights of a sample of five-month-old chickens were (in pounds):

4.41 4.37 4.33 4.35 4.30 4.39 4.36 4.38 4.40 4.39

At the .01 level, has the special additive increased the mean weight of the chickens?

Estimate the p-value.

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