a consumer research group is interested in testing an automobile manufacturer’s claimthat a new economy model will travel at least 25 miles per gallon of gasoline (h0: m $ 25).a. with a .02 level of significance and a sample of 30 cars, what is the rejection rule basedon the value of x for the test to determine whether the manufacturer’s claim should berejected? assume that s is 3 miles per gallon.b. what is the probability of committing a type ii error if the actual mileage is 23 milesper gallon?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.