Question

Cousin Penelope breeds Dachshunds and claims a specialized short tail variety normally distributed with average tail length of 3.7 inches and population S.D of 0.5 inch. In a sample of 12 of her dogs, what maximum mean length would be allowed against the hypothesis that her claim is valid? Use a significance of 0.025 (One Tailed)

What is the probability of a type II error if her dogs actually have a mean tail length of 4.15 inches?

Please show all work ! Thank you

Answer 1

Sototton 12 3.9829 122 Cs Scanned with CamScanner