Experience raising New Jersey Red chickens revealed the meanweight 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.
Null hypothesis H0: mu=4.35
Alternative hypothesis Ha: mu>4.35
Use the given information, by Excel, we have
The solution calculates a hypothesis test for the weight of NJ Red Chickens.