The lifetime of a squirrel follows a normal distribution with mean u months and a standard...

  

Transcribed Image Text:

The lifetime of a squirrel follows a normal distribution with mean u months and a standard deviation o=7 months. To test the alternative hypothesis that u> 40, 25 squirrels are randomly selected. The null hypothesis is rejected when the sample mean is bigger than 43. Assuming that H-45, the probability of type II error is approximately: A. 0.011 B. 0.05 C. 0.983 D. 0.076 The lifetime of a squirrel follows a normal distribution with mean u months and a standard deviation o=7 months. To test the alternative hypothesis that u> 40, 25 squirrels are randomly selected. The null hypothesis is rejected when the sample mean is bigger than 43. Assuming that H-45, the probability of type II error is approximately: A. 0.011 B. 0.05 C. 0.983 D. 0.076