Question 1

Refer to the t table and provide a numerical value for the 99th percentile of the distribution of t1.

Accepted Answer

df = 1 for a one-tailed test (i.e., perc

Question 2

Which one of the following is a correct interpretation of d = .99?

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 3

Using this random sample of data, test the following hypothesis at the .05 level of significance using SPSS. Interpret the output including identifying the specific statistical procedure that has been used and reporting the extent to which the test is statistically significant. Include appropriate evidence (e.g., values from the output).
 $\begin{array}{l}
\text { DATA } \
45.00 \
50.00 \
62.00 \
55.00 \
36.00 \
22.00 \
51.00 \
38.00 \
47.00 \
40.00 \
58.00 \
59.00 \
52.00 \
68.00 \
65.00 \
45.00 \
30.00 \
35.00 \
47.00 \
54.00
\end{array}$

$\begin{array}{l}
H_{0}: \mu=50 \
H_{1}: \mu \neq 50
\end{array}$

Accepted Answer

A one-sample t test was conducted. The r

Question 4

Using this random sample of data, test the following hypothesis at the .05 level of significance using SPSS. Interpret the output including identifying the specific statistical procedure that has been used and reporting the extent to which the test is statistically significant. Include appropriate evidence (e.g., values from the output).
 $\begin{array}{l}
\text { DATA } \
21.00 \
16.00 \
12.00 \
8.00 \
9.00 \
4.00 \
7.00 \
2.00 \
9.00 \
11.00 \
15.00 \
10.00 \
7.00 \
14.00 \
10.00 \
17.00 \
8.00 \
3.00 \
2.00 \
6.00
\end{array}$

$\begin{array}{l}
H_{0}: \mu=10 \
H_{1}: \mu \neq 10
\end{array}$

Accepted Answer

A one-sample t test was conducted. The r

Question 5

If the 99% CI does not include 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

Question 6

If the 99% 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

Question 7

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

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 8

Which one of the following is a correct interpretation of d = .19?

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 9

A research question asks, "Is the mean age (in years) of first-year teachers different from 25?" 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

A research article reports an alpha level of .01 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

Refer to the t table and provide a numerical value for the 99th percentile of the distribution of t₁_.

Which one of the following is a correct interpretation of d = .99?

If the 99% CI does not include the value for the parameter being estimated in H₀, then which one of the following is a correct statement?

If the 99% CI includes the value for the parameter being estimated in H₀, then which one of the following is a correct statement?

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

Which one of the following is a correct interpretation of d = .19?

A research question asks, "Is the mean age (in years) of first-year teachers different from 25?" Which one of the following is implied?

A research article reports an alpha level of .01 and a p value of .05. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

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

Refer to the t table and provide a numerical value for the 99th percentile of the distribution of t1.

Which one of the following is a correct interpretation of d = .99?

If the 99% CI does not include the value for the parameter being estimated in H0, then which one of the following is a correct statement?

If the 99% CI includes the value for the parameter being estimated in H0, then which one of the following is a correct statement?

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

Which one of the following is a correct interpretation of d = .19?

A research question asks, "Is the mean age (in years) of first-year teachers different from 25?" Which one of the following is implied?

A research article reports an alpha level of .01 and a p value of .05. Based on this, the author concludes that the test is statistically significant. Is the researcher correct?

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

Refer to the t table and provide a numerical value for the 99th percentile of the distribution of t₁_.

If the 99% CI does not include the value for the parameter being estimated in H₀, then which one of the following is a correct statement?

If the 99% CI includes the value for the parameter being estimated in H₀, then which one of the following is a correct statement?