1 For a given test if you reduce the probability of making a

1. For a given test, if you reduce the probability of making a type I error, then the probability of making a type II error

increases

decreases

remains the same

2. The \"level of significance\" of a test is ________ and is the probability of making a type ________ error.

alpha; I

alpha; II

beta; I

beta; II

3. If the conclusion of a test is to \"reject H_o\", then

we have proven H_o right.

H_A cannot be right.

our sample result was so improbable that we no longer believe H_o can be true.

our sample result was so probable that H_o must be true.

4. The p-value of a hypothesis test is

the probability of making a type II error.

the probability of accepting H_o.

the probability of getting another sample result identical to this one.

the probability of getting a test statistic at least as extreme as this, if H_o is really true.

		increases
		decreases
		remains the same

Solution

For a given test, if you reduce the probability of making a type I error, then the probability of making a type II error increases. The \"level of significance\" of a test is alpha and is the probability of making a type I error. If the conclusion of a test is to \"reject Ho\", then our sample result was so improbable that we no longer believe Ho can be true. The p-value of a hypothesis test is the probability of getting a test statistic at least as extreme as this, if Ho is really true.