For each situation described in Exercises 4.133 to 4.138, indicate whether it makes more sense to use a relatively large significance level (such as α = 0.10) or a relatively small significance level (such as α = 0.01). -Using your statistics class as a sample to see if there is evidence of a difference between male and female students in how many hours are spent watching television per week.

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3