(Solved): The number of hours spent watching Netflix by students in the week before their final exams has a ...

The number of hours spent watching Netflix by students in the week before their final exams has a normal distribution with a standard deviation of 4 hours. A random sample of 27 students was taken. a. Is the probability more than 0.95 that the sample standard deviation exceeds 3 hours? b. Is the probability more than 0.99 that the sample standard deviation is less than 5.2 hours? Click the icon to view a table of lower critical values for the chi-square distribution. Click the icon to view a table of upper critical values for the chi-square distribution. a. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals. Use ascending order.) O A. Yes, the probability that the sample standard deviation exceeds 3 hours is more than 0.95 because it lies between and O B. No, the probability that the sample standard deviation exceeds 3 hours is not more than 0.95 because it lies between and C