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(a)
To find out what is the null and alternative hypotheses.
(a)
Explanation of Solution
It is given in the question that you are in charge of shipping computers to customers. You learn that a faulty disk was put into some of the machines. Thus, the null hypothesis states that the drive in the computer is good. And the alternative hypothesis states the opposite, so, it is that the drive in the computer is bad.
(b)
To explain what would you decide given that a computer fails the test and what if it passes the test.
(b)
Explanation of Solution
It is given in the question that you are in charge of shipping computers to customers. You learn that a faulty disk was put into some of the machines. Thus, the null hypothesis states that the drive in the computer is good. And the alternative hypothesis states the opposite, so, it is that the drive in the computer is bad. Thus, we would decide given that a computer fails the test that we will reject the null hypothesis and if the computer passes the test then we fail to reject the null hypothesis.
(c)
To explain how large is
(c)
Answer to Problem 32E
Explanation of Solution
It is given in the question that you are in charge of shipping computers to customers. You learn that a faulty disk was put into some of the machines. Thus, the null hypothesis states that the drive in the computer is good. And the alternative hypothesis states the opposite, so, it is that the drive in the computer is bad. Thus,
(d)
To explain what is the power of this test.
(d)
Answer to Problem 32E
Explanation of Solution
It is given in the question that you are in charge of shipping computers to customers. You learn that a faulty disk was put into some of the machines. Thus, the null hypothesis states that the drive in the computer is good. And the alternative hypothesis states the opposite, so, it is that the drive in the computer is bad. Thus, the power of the test will be
Chapter 21 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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