Question: 1. An interval estimate is a range of values within which the actual value of the population parameter, such asmu (mean) may fall. (True/ False)

An interval estimate is a range of values within which the actual value of the population parameter, such asmu (mean) may fall. (True/ False)

The top-selling Red and Voss tire is rated 80,000 miles, which means nothing. In fact, the distance the tires can run until they wear out is a normally distributed random variable with a mean of 87,000 miles and a standard deviation of 8,400 miles. What is the probability that a tire wears out before 80,000 miles? Report your answer to four decimal places.

3.Increasing the probability of a Type I error will increase the probability of a Type II error.

(True or False)

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