題組內容

3. (20%) We have 100 samples from a population with normal distribution and population variance = 36. The hypotheses are H₀:μ ≤ 70, H₁:μ > 70.



(a) If the mean of sample is less than or equal to 71.5, accept H0; If the mean of sample is greater than 71.5, reject H0. Please compute Type I error.