1 If the conclusion of a hypothesis test is fail to reject H

1. If the conclusion of a hypothesis test is \"fail to reject H_O\" then

we have proven H_o true.

we have proven H_o false.

we have proven H_A false.

we don\'t have enough evidence to say H_o is false.

2. Which of the following cannot be determined from a boxplot?

range

median

IQR

the number of scores in the data set

3. We have calculated a 95% confidence interval and would prefer for our next confidence interval to have a smaller margin of error. In order to do this, we should

use a larger confidence level

use a larger standard deviation

use a larger sample size

Solution

1. we don\'t have enough evidence to say H_o is false.

2. the number of scores in the data set

3. use a larger sample size