Question 1

A t test value that is smaller than the tabled value of t

Accepted Answer

A)  leads to rejection of the null hypothesis 
B)  leads to retention of the null hypothesis 
C)  leads to acceptance of the alternative hypothesis 
D)  is evidence of an arithmetic mistake. 
A)  leads to rejection of the null hypothesis 
B)  leads to retention of the null hypothesis 
C)  leads to acceptance of the alternative hypothesis 
D)  is evidence of an arithmetic mistake.

Question 2

For a one-tailed test of significance, the

Accepted Answer

A)  probability of a Type I error is half as big as for a two-tailed test of significance 
B)  probability of a Type I error is twice as big as for a two-tailed test of significance 
C)  $\alpha$ level is twice as big as a two-tailed test 
D)  none of the other alternatives are correct. 
A)  probability of a Type I error is half as big as for a two-tailed test of significance 
B)  probability of a Type I error is twice as big as for a two-tailed test of significance 
C)  $\alpha$ level is twice as big as a two-tailed test 
D)  none of the other alternatives are correct.

Question 3

In an experiment similar to the Doritos example, the published claim was a mean of 200. Data were gathered from a population that had a mean of 200. On the basis of the sample data, H0 was rejected. You can conclude that

Accepted Answer

A)  a Type I error occurred 
B)  a Type II error occurred 
C)  a correct decision was made 
D)  more information is necessary before the question can be answered. 
A)  a Type I error occurred 
B)  a Type II error occurred 
C)  a correct decision was made 
D)  more information is necessary before the question can be answered.

Question 4

The symbol for an effect size index is e.

Accepted Answer

A) True 
 B)False

Question 5

The p in p < .05 is the probability of

Accepted Answer

A)  the data obtained when H0 is true 
B)  the data obtained when H0 is false 
C)  making an error when H0 is true 
D)  making an error when H0 is false. 
A)  the data obtained when H0 is true 
B)  the data obtained when H0 is false 
C)  making an error when H0 is true 
D)  making an error when H0 is false.

Question 6

The probability figure that is the conventional cut-off for null hypothesis statistical testing is .05.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is a correct pairing?

Accepted Answer

A)  Type I error and $\beta$ 
B)  Type II error and $\alpha$ 
C)  Type II error and $\beta$ 
A)  Type I error and $\beta$ 
B)  Type II error and $\alpha$ 
C)  Type II error and $\beta$

Question 8

Data Set 9-2: Scores: 1, 2, 3, 4, 5
-The t value when the scores in Data Set 9-2 are tested against H0: $\mu$  = 4.00 leads to the conclusion that the null hypothesis should be

Accepted Answer

A)  rejected at the .05 level for a two-tailed test 
B)  rejected at the .05 and .01 level for a two-tailed test 
C)  rejected at the .05 level for a one-tailed test 
D)  retained. 
A)  rejected at the .05 level for a two-tailed test 
B)  rejected at the .05 and .01 level for a two-tailed test 
C)  rejected at the .05 level for a one-tailed test 
D)  retained.

Question 9

A one-tailed test is proper when

Accepted Answer

A)  you do not have enough data for a two-tailed test 
B)  you have only one sample, not two 
C)  you are only interested in finding out if the effect of a treatment is to increase the scores 
D)  you want to make the standard error of a difference as small as possible. 
A)  you do not have enough data for a two-tailed test 
B)  you have only one sample, not two 
C)  you are only interested in finding out if the effect of a treatment is to increase the scores 
D)  you want to make the standard error of a difference as small as possible.

Question 10

A hypothesis about a mean was proposed, and a level of .05 adopted, data gathered, a sample mean computed, and a probability figure attached to the difference between the sample mean and the hypothesized mean. Which of the following probabilities are in the rejection region?

Accepted Answer

A)  .10 
B)  .25 
C)  1.00 
D)  none of the other alternatives are correct. 
A)  .10 
B)  .25 
C)  1.00 
D)  none of the other alternatives are correct.

Question 11

Under which of the following conditions would you not use null hypothesis statistical testing (NHST)?

Accepted Answer

A)  samples are not randomly chosen from the population 
B)  population data are available 
C)  sample sizes are less than 12 
D)  all of the other alternatives are correct. 
A)  samples are not randomly chosen from the population 
B)  population data are available 
C)  sample sizes are less than 12 
D)  all of the other alternatives are correct.

Question 12

Your text concluded that the Frito-Lay corporation, which claims to put 269.3 grams of tortilla chips in each bag, actually puts in _____________ that amount.

Accepted Answer

A)  about 
B)  exactly 
C)  significantly more than 
D)  significantly less than. 
A)  about 
B)  exactly 
C)  significantly more than 
D)  significantly less than.

Question 13

Data Set 9-4: N = 6 $\Sigma$X = 30 $\Sigma$XS1U1P12S1S1P0 = 180
-Refer to Data Set 9-4. For H0: µ = 8.00, the effect size index is

Accepted Answer

A)  1.00 
B)  0.41 
C)  0.45 
D)  1.22 
A)  1.00 
B)  0.41 
C)  0.45 
D)  1.22

Question 14

The denominator of a t test is a difference between means.

Accepted Answer

A) True 
 B)False

Question 15

The two opposing hypotheses in null hypothesis statistical testing are the null hypothesis and the original hypothesis.

Accepted Answer

A) True 
 B)False

Question 16

When the null hypothesis is not rejected, you

Accepted Answer

A)  have proved that it is true 
B)  have shown that it is probably true 
C)  should suspend judgment 
D)  reject H1. 
A)  have proved that it is true 
B)  have shown that it is probably true 
C)  should suspend judgment 
D)  reject H1.

Question 17

The t distribution is a(n)________sampling distribution based on the assumption that the null hypothesis is___________

Accepted Answer

A)  empirical, true 
B)  empirical, false 
C)  theoretical, true 
D)  theoretical, false. 
A)  empirical, true 
B)  empirical, false 
C)  theoretical, true 
D)  theoretical, false.

Question 18

Data Set 9-1: Sample scores: 2, 3, 4
-Test the scores in Data Set 9-1 against H0:µ = 1.00. The t value that results is

Accepted Answer

A)  6.00 
B)  3.46 
C)  2.00 
D)  0.67 
A)  6.00 
B)  3.46 
C)  2.00 
D)  0.67

Question 19

A correlation coefficient of .36 based on 35 pairs is, for a two-tailed test,

Accepted Answer

A)  significant at the .05 level 
B)  significant at the .01 level 
C)  significant at the .001 level 
D)  not significant. 
A)  significant at the .05 level 
B)  significant at the .01 level 
C)  significant at the .001 level 
D)  not significant.

Question 20

In null hypothesis statistical testing (NHST), the hypothesis that is tested is about a

Accepted Answer

A)  sample 
B)  population 
C)  both sample and population 
D)  neither sample nor population. 
A)  sample 
B)  population 
C)  both sample and population 
D)  neither sample nor population.

A t test value that is smaller than the tabled value of t

For a one-tailed test of significance, the

In an experiment similar to the Doritos example, the published claim was a mean of 200. Data were gathered from a population that had a mean of 200. On the basis of the sample data, H₀ was rejected. You can conclude that

The symbol for an effect size index is e.

The p in p < .05 is the probability of

The probability figure that is the conventional cut-off for null hypothesis statistical testing is .05.

Which of the following is a correct pairing?

Data Set 9-2: Scores: 1, 2, 3, 4, 5 -The t value when the scores in Data Set 9-2 are tested against H₀: $\mu$ = 4.00 leads to the conclusion that the null hypothesis should be

A one-tailed test is proper when

A hypothesis about a mean was proposed, and a level of .05 adopted, data gathered, a sample mean computed, and a probability figure attached to the difference between the sample mean and the hypothesized mean. Which of the following probabilities are in the rejection region?

Under which of the following conditions would you not use null hypothesis statistical testing (NHST)?

Your text concluded that the Frito-Lay corporation, which claims to put 269.3 grams of tortilla chips in each bag, actually puts in _____________ that amount.

Data Set 9-4: N = 6 $\Sigma$ X = 30 $\Sigma$ X² = 180 -Refer to Data Set 9-4. For H₀: µ = 8.00, the effect size index is

The denominator of a t test is a difference between means.

The two opposing hypotheses in null hypothesis statistical testing are the null hypothesis and the original hypothesis.

When the null hypothesis is not rejected, you

The t distribution is a(n)sampling distribution based on the assumption that the null hypothesis is___

Data Set 9-1: Sample scores: 2, 3, 4 -Test the scores in Data Set 9-1 against H₀:µ = 1.00. The t value that results is

A correlation coefficient of .36 based on 35 pairs is, for a two-tailed test,

In null hypothesis statistical testing (NHST), the hypothesis that is tested is about a

Introduction

Exploring Data: Frequency Distributions and Graphs

Exploring Data: Central Tendency

Exploring Data: Variability

Other Descriptive Statistics

Correlation and Regression

Theoretical Distributions Including the Normal Distribution

Samples, Sampling Distributions, and Confidence Intervals

Hypothesis Testing, Effect Size, and and Confidence Intervals: Two-Sample Designs

Analysis of Variance: One-Way Classification

Analysis of Variance: One-Factor Repeated Measures

Analysis of Variance: Factorial Design

Chi Square Tests

More Nonparametric Tests

Appendix: Grouped Frequency Distributions and Central Tendency

Filters

Exam 9: Hypothesis Testing and Effect Size: One-Sample Designs

A t test value that is smaller than the tabled value of t

For a one-tailed test of significance, the

In an experiment similar to the Doritos example, the published claim was a mean of 200. Data were gathered from a population that had a mean of 200. On the basis of the sample data, H0 was rejected. You can conclude that

The symbol for an effect size index is e.

The p in p < .05 is the probability of

The probability figure that is the conventional cut-off for null hypothesis statistical testing is .05.

Which of the following is a correct pairing?

Data Set 9-2: Scores: 1, 2, 3, 4, 5 -The t value when the scores in Data Set 9-2 are tested against H0: μ\muμ = 4.00 leads to the conclusion that the null hypothesis should be

A one-tailed test is proper when

A hypothesis about a mean was proposed, and a level of .05 adopted, data gathered, a sample mean computed, and a probability figure attached to the difference between the sample mean and the hypothesized mean. Which of the following probabilities are in the rejection region?

Under which of the following conditions would you not use null hypothesis statistical testing (NHST)?

Your text concluded that the Frito-Lay corporation, which claims to put 269.3 grams of tortilla chips in each bag, actually puts in _____________ that amount.

Data Set 9-4: N = 6 Σ\SigmaΣ X = 30 Σ\SigmaΣ X2 = 180 -Refer to Data Set 9-4. For H0: µ = 8.00, the effect size index is

The denominator of a t test is a difference between means.

The two opposing hypotheses in null hypothesis statistical testing are the null hypothesis and the original hypothesis.

When the null hypothesis is not rejected, you

The t distribution is a(n)________sampling distribution based on the assumption that the null hypothesis is___________

Data Set 9-1: Sample scores: 2, 3, 4 -Test the scores in Data Set 9-1 against H0:µ = 1.00. The t value that results is

A correlation coefficient of .36 based on 35 pairs is, for a two-tailed test,

In null hypothesis statistical testing (NHST), the hypothesis that is tested is about a

Introduction

Exploring Data: Frequency Distributions and Graphs

Exploring Data: Central Tendency

Exploring Data: Variability

Other Descriptive Statistics

Correlation and Regression

Theoretical Distributions Including the Normal Distribution

Samples, Sampling Distributions, and Confidence Intervals

Hypothesis Testing, Effect Size, and and Confidence Intervals: Two-Sample Designs

Analysis of Variance: One-Way Classification

Analysis of Variance: One-Factor Repeated Measures

Analysis of Variance: Factorial Design

Chi Square Tests

More Nonparametric Tests

Appendix: Grouped Frequency Distributions and Central Tendency

Filters

In an experiment similar to the Doritos example, the published claim was a mean of 200. Data were gathered from a population that had a mean of 200. On the basis of the sample data, H₀ was rejected. You can conclude that

Data Set 9-2: Scores: 1, 2, 3, 4, 5 -The t value when the scores in Data Set 9-2 are tested against H₀: $\mu$ = 4.00 leads to the conclusion that the null hypothesis should be

Data Set 9-4: N = 6 $\Sigma$ X = 30 $\Sigma$ X² = 180 -Refer to Data Set 9-4. For H₀: µ = 8.00, the effect size index is

The t distribution is a(n)sampling distribution based on the assumption that the null hypothesis is___

Data Set 9-1: Sample scores: 2, 3, 4 -Test the scores in Data Set 9-1 against H₀:µ = 1.00. The t value that results is