Question

The plant manager believes the true mean yield is 92.5%. Does the 95% confidence interval support their belief?

a) Yes
b) No
c) Insufficient information
d) Not applicable

Answer 1

The 95% confidence interval does not support the plant manager's belief without more information.

Step-by-step explanation:

To determine if the 95% confidence interval supports the plant manager's belief that the true mean yield is 92.5%, we would need to calculate a confidence interval based on sample data. If the 92.5% falls within the confidence interval, then it supports the belief. If not, it does not support the belief. The given conclusion and information provided do not give us enough information to calculate the confidence interval, so the answer is c) Insufficient information.