Question 1 1 pts One of the issues some managers have with statistics is that the results of a statistical test can differ with different samples,...

Question 1

1 pts

  One of the issues some managers have with statistics is that the results of a statistical test can differ with different samples, and the importance of an outcome is hard to assess.

True

False

Question 2

1 pts

 Practical significance of a null hypothesis rejection is important because

Any null hypothesis rejection should be factored into all related decisions

Not all null hypothesis rejections will impact real world outcomes in a meaningful way

A large enough sample size can cause most all null hypothesis claims to be rejected.

B and C

A and B

Question 3

1 pts

 Which of the following terms are included in a 95% confidence interval for the difference between two means found from a sample of 25 for each sample?

The mean

T value for a df of 48, at two tail .05

The standard error of the mean

All of these are used

Only a and b

Question 4

1 pts

 Which of the following terms are included in a 95% confidence interval for a mean found from a sample of 25?

The mean

T value for a df of 24, at two tail .05

The standard error of the mean

All of these are used

Only a and b

Question 5

1 pts

Confidence intervals are centered around a

Sample mean

Population mean

Either

Any desired sample statistic

Question 6

1 pts

Confidence intervals should only be constructed when

The null hypothesis is rejected a difference is indicated

Before any hypothesis test is performed

The null hypothesis is not rejected and no difference is indicated

Anytime the confidence interval outcome is desired

Question 7

1 pts

 A "large" effect measure result suggests

The sample size is more responsible for the null hypothesis rejection

The sample size is more responsible for not rejecting the null hypothesis

The variable interaction is more responsible for the null hypothesis rejection

The variable interaction is more responsible for not rejecting the null hypothesis

Question 8

1 pts

The effect size measure for ANOVA is

Eta squared

Cohen's D

|r|

All of these are appropriate

Question 9

1 pts

Two 95% mean confidence intervals indicate a difference between means at the alpha = .05 level when

The endpoints do not touch

The endpoints just barely overlap

The endpoints overlap by about 25% of their range

We cannot use single mean confidence intervals to determine differences.

Question 10

1 pts

 Two 95% mean confidence intervals indicate a difference between means at less than the alpha = .01 level when

The endpoints do not touch

The endpoints just barely overlap

The endpoints overlap by about 25% of their range

We cannot use single mean confidence intervals to determine differences.