# Question: Repeat the previous exercise using lower 05 For

Repeat the previous exercise, using lower? α = .05. For each true value of π, is the power higher or lower?

Previous exercise

A quality expert inspects 400 items to test whether the population proportion of defectives exceeds .03, using a right-tailed test at α = .10.

(a) What is the power of this test if the true proportion of defectives is π = .04?

(b) If the true proportion is π = .05?

(c) If the true proportion of defectives is π = .06?

Previous exercise

A quality expert inspects 400 items to test whether the population proportion of defectives exceeds .03, using a right-tailed test at α = .10.

(a) What is the power of this test if the true proportion of defectives is π = .04?

(b) If the true proportion is π = .05?

(c) If the true proportion of defectives is π = .06?

## Relevant Questions

For a certain wine, the mean pH (a measure of acidity) is supposed to be 3.50 with a known standard deviation of α = .10. The quality inspector examines 25 bottles at random to test whether the pH is too low, using a ...A sample of size n = 19 has variance s2 = 1.96. At α = .05 in a right-tailed test, does this sample contradict the hypothesis that σ2 = 1.21? A test-preparation company advertises that its training program raises SAT scores by an average of at least 30 points. A random sample of test-takers who had completed the training showed a mean increase smaller than 30 ...Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 ...In the Big Ten (the NCAA sports league), a sample showed that only 267 out of 584 fresh- men football players graduated within 6 years. (a) At α = .05, does this sample contradict the claim that at least half graduate ...Post your question