Question 1

Which one of the following is a correct interpretation of d = .51?

Accepted Answer

A)  Small effect 
B)  Moderate effect 
C)  Large effect 
D)  Statistical significance at .05 
E)  Not statistically significant at .05 
A)  Small effect 
B)  Moderate effect 
C)  Large effect 
D)  Statistical significance at .05 
E)  Not statistically significant at .05 B

Question 2

Which one of the following is a correct interpretation of $\beta$?

Accepted Answer

A)  alpha level 
B)  confidence interval 
C)  effect size 
D)  observed probability 
E)  power 
A)  alpha level 
B)  confidence interval 
C)  effect size 
D)  observed probability 
E)  power E

Question 3

If the 90% CI includes the value for the parameter being estimated in H0, then which one of the following is a correct statement?

Accepted Answer

A)  H0 cannot be rejected at the .10 level 
B)  H0 can be rejected at the .10 level 
C)  H0 cannot be rejected at the .01 level 
D)  H0 can be rejected at the .01 level 
A)  H0 cannot be rejected at the .10 level 
B)  H0 can be rejected at the .10 level 
C)  H0 cannot be rejected at the .01 level 
D)  H0 can be rejected at the .01 level A

Question 4

Refer to the t table and provide a numerical value for the percentile rank of t40 = 2.021.

Accepted Answer

df = 40 for a one-tailed test

Question 5

A research article reports an alpha level of .05 and a p value of 1.20. Based on this, the author concludes that the test is NOT statistically significant. Is the researcher correct?

Accepted Answer

A) True 
 B)False

Question 6

When testing the hypothesis presented below, at a .05 level of significance with the t test, where is the rejection region? $\begin{array}{l}
H_{0}: \mu=100 \
H_{1}: \mu \neq 100
\end{array}$

Accepted Answer

A)  the upper tail 
B)  the lower tail 
C)  both the upper and tails 
D)  cannot be determined 
A)  the upper tail 
B)  the lower tail 
C)  both the upper and tails 
D)  cannot be determined

Question 7

The probability of making a Type I error when the level of significance is .05 is which one of the following?

Accepted Answer

A)  0 
B)  .05 
C)  .10 
D)  between .05 and .95 
E)  .90 
F) .95 
A)  0 
B)  .05 
C)  .10 
D)  between .05 and .95 
E)  .90 
F) .95

Question 8

A research article reports an alpha level of .10 and a p value of .05. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

Accepted Answer

A) True 
 B)False

Question 9

A research question asks, "Is the mean purchase price of required textbooks for one semester higher than $750?" Which one of the following is implied?

Accepted Answer

A)  left-tailed test 
B)  right-tailed test 
C)  two-tailed test 
D)  cannot be determined based on this information 
A)  left-tailed test 
B)  right-tailed test 
C)  two-tailed test 
D)  cannot be determined based on this information

Question 10

Which one of the following is a correct interpretation of the significance level?

Accepted Answer

A)  alpha level 
B)  confidence interval 
C)  effect size 
D)  observed probability 
E)  power 
A)  alpha level 
B)  confidence interval 
C)  effect size 
D)  observed probability 
E)  power

Question 11

The probability of making a Type I error when the level of significance is .10 is which one of the following?

Accepted Answer

A)  0 
B)  .05 
C)  .10 
D)  between .05 and .95 
E)  .90 
F) .95 
A)  0 
B)  .05 
C)  .10 
D)  between .05 and .95 
E)  .90 
F) .95

Question 12

In hypothesis testing, the probability of rejecting H0 when H0 is false is denoted by

Accepted Answer

A)  $\alpha$ 
B)  1 - $\alpha$ 
C)  $\beta$ 
D)  1 - $\beta$ 
A)  $\alpha$ 
B)  1 - $\alpha$ 
C)  $\beta$ 
D)  1 - $\beta$

Question 13

A research article reports an alpha level of .05 and a p value of .10. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

Accepted Answer

A) True 
 B)False

Question 14

A research question asks, "Is the mean number of hours spent studying per week for college freshmen lower than 15?" Which one of the following is implied?

Accepted Answer

A)  left-tailed test 
B)  right-tailed test 
C)  two-tailed test 
D)  cannot be determined based on this information 
A)  left-tailed test 
B)  right-tailed test 
C)  two-tailed test 
D)  cannot be determined based on this information

Question 15

Which one of the following is a correct interpretation of d = .90?

Accepted Answer

A)  Small effect 
B)  Moderate effect 
C)  Large effect 
D)  Statistical significance at .05 
E)  Not statistically significant at .05 
A)  Small effect 
B)  Moderate effect 
C)  Large effect 
D)  Statistical significance at .05 
E)  Not statistically significant at .05

Question 16

A research article reports an alpha level of .01 and a p value of 2.0. Based on this, the author concludes that the test is NOT statistically significant. Is the researcher correct?

Accepted Answer

A) True 
 B)False

Question 17

A one-sample t test is conducted at an alpha level of .05. The researcher finds a p value of .08 and concludes that the test is statistically significant. Is the researcher correct?

Accepted Answer

A) True 
 B)False

Question 18

Refer to the t table and provide a numerical value for the percentile rank of t20 = 2.528.

Accepted Answer

df = 20 for a one-tailed test

Question 19

Which one of the following is a correct interpretation of p value?

Accepted Answer

A)  alpha level 
B)  confidence interval 
C)  effect size 
D)  observed probability 
E)  power 
A)  alpha level 
B)  confidence interval 
C)  effect size 
D)  observed probability 
E)  power

Question 20

A research question asks, "Is the mean commute (in miles) to college more than 15 miles?" Which one of the following is implied?

Accepted Answer

A)  left-tailed test 
B)  right-tailed test 
C)  two-tailed test 
D)  cannot be determined based on this information 
A)  left-tailed test 
B)  right-tailed test 
C)  two-tailed test 
D)  cannot be determined based on this information

Which one of the following is a correct interpretation of d = .51?

Which one of the following is a correct interpretation of $\beta$ ?

If the 90% CI includes the value for the parameter being estimated in H₀, then which one of the following is a correct statement?

Refer to the t table and provide a numerical value for the percentile rank of t₄₀ = 2.021.

A research article reports an alpha level of .05 and a p value of 1.20. Based on this, the author concludes that the test is NOT statistically significant. Is the researcher correct?

When testing the hypothesis presented below, at a .05 level of significance with the t test, where is the rejection region? :\mu=100 :\mu100

The probability of making a Type I error when the level of significance is .05 is which one of the following?

A research article reports an alpha level of .10 and a p value of .05. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

A research question asks, "Is the mean purchase price of required textbooks for one semester higher than $750?" Which one of the following is implied?

Which one of the following is a correct interpretation of the significance level?

The probability of making a Type I error when the level of significance is .10 is which one of the following?

In hypothesis testing, the probability of rejecting H₀ when H₀ is false is denoted by

A research article reports an alpha level of .05 and a p value of .10. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

A research question asks, "Is the mean number of hours spent studying per week for college freshmen lower than 15?" Which one of the following is implied?

Which one of the following is a correct interpretation of d = .90?

A research article reports an alpha level of .01 and a p value of 2.0. Based on this, the author concludes that the test is NOT statistically significant. Is the researcher correct?

A one-sample t test is conducted at an alpha level of .05. The researcher finds a p value of .08 and concludes that the test is statistically significant. Is the researcher correct?

Refer to the t table and provide a numerical value for the percentile rank of t₂₀ = 2.528.

Which one of the following is a correct interpretation of p value?

A research question asks, "Is the mean commute (in miles) to college more than 15 miles?" Which one of the following is implied?

Introduction

Data Representation

Univariate Population Parameters and Sample Statistics

Normal Distribution and Standard Scores

Introduction to Probability and Sample Statistics

Inferences About the Difference Between Two Means

Inferences About Proportions

Inferences About Variances

Bivariate Measures of Association

One-Factor Anova: Fixed-Effects Model

Multiple Comparison Procedures

Factorial Anova: Fixed-Effects Model

One-Factor Fixed-Effects Ancova With Single Covariate

Random- and Mixed-Effects Analysis of Variance Models

Hierarchical and Randomized Block Analysis of Variance Models

Simple Linear Regression

Multiple Regression

Logistic Regression

Filters

Exam 6: Inferences About a Single Mean

Which one of the following is a correct interpretation of d = .51?

Which one of the following is a correct interpretation of β\betaβ ?

If the 90% CI includes the value for the parameter being estimated in H0, then which one of the following is a correct statement?

Refer to the t table and provide a numerical value for the percentile rank of t40 = 2.021.

A research article reports an alpha level of .05 and a p value of 1.20. Based on this, the author concludes that the test is NOT statistically significant. Is the researcher correct?

When testing the hypothesis presented below, at a .05 level of significance with the t test, where is the rejection region? :\mu=100 :\mu100

The probability of making a Type I error when the level of significance is .05 is which one of the following?

A research article reports an alpha level of .10 and a p value of .05. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

A research question asks, "Is the mean purchase price of required textbooks for one semester higher than $750?" Which one of the following is implied?

Which one of the following is a correct interpretation of the significance level?

The probability of making a Type I error when the level of significance is .10 is which one of the following?

In hypothesis testing, the probability of rejecting H0 when H0 is false is denoted by

A research article reports an alpha level of .05 and a p value of .10. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

A research question asks, "Is the mean number of hours spent studying per week for college freshmen lower than 15?" Which one of the following is implied?

Which one of the following is a correct interpretation of d = .90?

A research article reports an alpha level of .01 and a p value of 2.0. Based on this, the author concludes that the test is NOT statistically significant. Is the researcher correct?

A one-sample t test is conducted at an alpha level of .05. The researcher finds a p value of .08 and concludes that the test is statistically significant. Is the researcher correct?

Refer to the t table and provide a numerical value for the percentile rank of t20 = 2.528.

Which one of the following is a correct interpretation of p value?

A research question asks, "Is the mean commute (in miles) to college more than 15 miles?" Which one of the following is implied?

Introduction

Data Representation

Univariate Population Parameters and Sample Statistics

Normal Distribution and Standard Scores

Introduction to Probability and Sample Statistics

Inferences About the Difference Between Two Means

Inferences About Proportions

Inferences About Variances

Bivariate Measures of Association

One-Factor Anova: Fixed-Effects Model

Multiple Comparison Procedures

Factorial Anova: Fixed-Effects Model

One-Factor Fixed-Effects Ancova With Single Covariate

Random- and Mixed-Effects Analysis of Variance Models

Hierarchical and Randomized Block Analysis of Variance Models

Simple Linear Regression

Multiple Regression

Logistic Regression

Filters

Which one of the following is a correct interpretation of $\beta$ ?

If the 90% CI includes the value for the parameter being estimated in H₀, then which one of the following is a correct statement?

Refer to the t table and provide a numerical value for the percentile rank of t₄₀ = 2.021.

In hypothesis testing, the probability of rejecting H₀ when H₀ is false is denoted by

Refer to the t table and provide a numerical value for the percentile rank of t₂₀ = 2.528.