Question 1

The level of risk associated with the null hypothesis is generally set at ______.

Accepted Answer

A) 0.05 
B) 0.10 
C) 0.001 
D) 0.20 
A) 0.05 
B) 0.10 
C) 0.001 
D) 0.20 A

Question 2

In a t-test,if the resultant t value is -2.72 and p < 0.05,what is the interpretation?

Accepted Answer

A) There is a statistical significance in the test. 
B) There is no statistical significance in the test. 
C) unknown 
D) The sample is unaffected. 
A) There is a statistical significance in the test. 
B) There is no statistical significance in the test. 
C) unknown 
D) The sample is unaffected. A

Question 3

The standard deviation of all possible means selected from the population is the ______.

Accepted Answer

A) standard error of the population 
B) standard error of the median 
C) standard error of the mean 
D) standard error of the sample 
A) standard error of the population 
B) standard error of the median 
C) standard error of the mean 
D) standard error of the sample C

Question 4

If the obtained value is higher than the critical value,what is the conclusion?

Accepted Answer

A) Reject the research hypothesis. 
B) Accept the null hypothesis. 
C) Reject the null hypothesis. 
D) Cannot be determined. 
A) Reject the research hypothesis. 
B) Accept the null hypothesis. 
C) Reject the null hypothesis. 
D) Cannot be determined.

Question 5

SPSS does NOT offer which of the following?

Accepted Answer

A) one-sample t-test 
B) one-sample Z-test 
C) one-sample F-test 
D) one-sample Chi-square test 
A) one-sample t-test 
B) one-sample Z-test 
C) one-sample F-test 
D) one-sample Chi-square test

Question 6

The denominator in the equation for the z value is equal to ______.

Accepted Answer

A) the population average subtracted from the mean of the sample 
B) the mean of the sample subtracted from the population average 
C) the standard error of the mean minus the population average 
D) the standard error of the mean 
A) the population average subtracted from the mean of the sample 
B) the mean of the sample subtracted from the population average 
C) the standard error of the mean minus the population average 
D) the standard error of the mean

Question 7

In the effect size formula,what does d signify?

Accepted Answer

A) the sample mean 
B) effect size 
C) the population mean 
D) the population standard deviation 
A) the sample mean 
B) effect size 
C) the population mean 
D) the population standard deviation

Question 8

If you have a population standard deviation of 9 and a sample size of 81,what is your standard error of the mean?

Accepted Answer

A) -3.0 
B) 2.0 
C) 1.0 
D) 0 
A) -3.0 
B) 2.0 
C) 1.0 
D) 0

Question 9

The sample mean is 12,the population average is 19,and the standard error of the mean is 4.What is the observed z value?

Accepted Answer

A) -1.75 
B) -0.75 
C) 1.75 
D) 3.5, 
A) -1.75 
B) -0.75 
C) 1.75 
D) 3.5,

Question 10

If you have a population standard deviation of 18 and a sample size of 9,what is your standard error of the mean?

Accepted Answer

A) -3 
B) 11 
C) 6 
D) 5 
A) -3 
B) 11 
C) 6 
D) 5

Question 11

If the sample mean is 100,the population average is 90,and the standard error of the mean is 10,what is the observed z value?

Accepted Answer

A) 0 
B) -0.10 
C) 1.0 
D) -1.0 
A) 0 
B) -0.10 
C) 1.0 
D) -1.0

Question 12

In interpreting effect size,what is the meaning of effect size at 0.4?

Accepted Answer

A) small effect size 
B) medium effect size 
C) large effect size 
D) weak effect size 
A) small effect size 
B) medium effect size 
C) large effect size 
D) weak effect size

Question 13

If you have a population standard deviation of 20 and a sample size of 4,what is your standard error of the mean?

Accepted Answer

A) -10 
B) 10 
C) 5 
D) -5 
A) -10 
B) 10 
C) 5 
D) -5

Question 14

What is the meaning of an effect size at 0.2?

Accepted Answer

A) small effect size 
B) medium effect size 
C) large effect size 
D) weak effect size 
A) small effect size 
B) medium effect size 
C) large effect size 
D) weak effect size

Question 15

After conducting a one-sample Z-test,you arrived at a value of -12.5 for the z value.What is your conclusion?

Accepted Answer

A) Reject the null hypothesis. 
B) Accept the null hypothesis. 
C) The result is too close to call. 
D) You have miscalculated. 
A) Reject the null hypothesis. 
B) Accept the null hypothesis. 
C) The result is too close to call. 
D) You have miscalculated.

Question 16

The standard error of the mean is the best estimate that we can come up with given that it is impossible to compute ______.

Accepted Answer

A) all of the possible variances 
B) all of the possible standard deviations 
C) all of the possible means 
D) all of the possible medians 
A) all of the possible variances 
B) all of the possible standard deviations 
C) all of the possible means 
D) all of the possible medians

Question 17

In a t-test,if the resultant t value is 2.72 and p < 0.05,what is the interpretation?

Accepted Answer

A) There is a statistical significance in the test. 
B) There is no statistical significance in the test. 
C) unknown 
D) The sample is unaffected 
A) There is a statistical significance in the test. 
B) There is no statistical significance in the test. 
C) unknown 
D) The sample is unaffected

Question 18

Sample size is taken into account when computing effect size.

Accepted Answer

A) True 
 B)False

Question 19

If the obtained value is NOT higher than the critical value,we ______.

Accepted Answer

A) reject the null hypothesis 
B) accept the null hypothesis 
C) accept all hypotheses 
D) reject all hypotheses 
A) reject the null hypothesis 
B) accept the null hypothesis 
C) accept all hypotheses 
D) reject all hypotheses

Question 20

Effect size is a measure of how different two groups are from one another.

Accepted Answer

A) True 
 B)False

The level of risk associated with the null hypothesis is generally set at ______.

In a t-test,if the resultant t value is -2.72 and p < 0.05,what is the interpretation?

The standard deviation of all possible means selected from the population is the ______.

If the obtained value is higher than the critical value,what is the conclusion?

SPSS does NOT offer which of the following?

The denominator in the equation for the z value is equal to ______.

In the effect size formula,what does d signify?

If you have a population standard deviation of 9 and a sample size of 81,what is your standard error of the mean?

The sample mean is 12,the population average is 19,and the standard error of the mean is 4.What is the observed z value?

If you have a population standard deviation of 18 and a sample size of 9,what is your standard error of the mean?

If the sample mean is 100,the population average is 90,and the standard error of the mean is 10,what is the observed z value?

In interpreting effect size,what is the meaning of effect size at 0.4?

If you have a population standard deviation of 20 and a sample size of 4,what is your standard error of the mean?

What is the meaning of an effect size at 0.2?

After conducting a one-sample Z-test,you arrived at a value of -12.5 for the z value.What is your conclusion?

The standard error of the mean is the best estimate that we can come up with given that it is impossible to compute ______.

In a t-test,if the resultant t value is 2.72 and p < 0.05,what is the interpretation?

Sample size is taken into account when computing effect size.

If the obtained value is NOT higher than the critical value,we ______.

Effect size is a measure of how different two groups are from one another.

Statistics or Sadistics Its up to You

Means to an End: Computing and Understanding Averages

Understanding Variability: Vive La Différence

A Picture Really Is Worth a Thousand Words

Computing Correlation Coefficients: Ice Cream and Crime

Understanding Reliability and Validity: Just the Truth

Hypotheticals and You: Testing Your Questions

Probability and Why It Counts: Fun With a Bell-Shaped Curve

Significantly Significant: What It Means for You and Me

Teafor Two: Tests Between the Means of Different Groups

Teafor Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Testing Relationships Using the Correlation Coefficients: Cousins or Just Good Friends

Using Linear Regression: Predicting Wholl Win the Super Bowl

Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

Some Other Importantstatistical Procedures You Should Know About

An Introduction to Data Mining

Filters

Exam 10: Only the Lonely: the One Sample Z-Test

The level of risk associated with the null hypothesis is generally set at ______.

In a t-test,if the resultant t value is -2.72 and p < 0.05,what is the interpretation?

The standard deviation of all possible means selected from the population is the ______.

If the obtained value is higher than the critical value,what is the conclusion?

SPSS does NOT offer which of the following?

The denominator in the equation for the z value is equal to ______.

In the effect size formula,what does d signify?

If you have a population standard deviation of 9 and a sample size of 81,what is your standard error of the mean?

The sample mean is 12,the population average is 19,and the standard error of the mean is 4.What is the observed z value?

If you have a population standard deviation of 18 and a sample size of 9,what is your standard error of the mean?

If the sample mean is 100,the population average is 90,and the standard error of the mean is 10,what is the observed z value?

In interpreting effect size,what is the meaning of effect size at 0.4?

If you have a population standard deviation of 20 and a sample size of 4,what is your standard error of the mean?

What is the meaning of an effect size at 0.2?

After conducting a one-sample Z-test,you arrived at a value of -12.5 for the z value.What is your conclusion?

The standard error of the mean is the best estimate that we can come up with given that it is impossible to compute ______.

In a t-test,if the resultant t value is 2.72 and p < 0.05,what is the interpretation?

Sample size is taken into account when computing effect size.

If the obtained value is NOT higher than the critical value,we ______.

Effect size is a measure of how different two groups are from one another.

Statistics or Sadistics Its up to You

Means to an End: Computing and Understanding Averages

Understanding Variability: Vive La Différence

A Picture Really Is Worth a Thousand Words

Computing Correlation Coefficients: Ice Cream and Crime

Understanding Reliability and Validity: Just the Truth

Hypotheticals and You: Testing Your Questions

Probability and Why It Counts: Fun With a Bell-Shaped Curve

Significantly Significant: What It Means for You and Me

Teafor Two: Tests Between the Means of Different Groups

Teafor Two Again: Tests Between the Means of Related Groups

Two Groups Too Many Try Analysis of Variance

Two Too Many Factors: Factorial Analysis of Variancea Brief Introduction

Testing Relationships Using the Correlation Coefficients: Cousins or Just Good Friends

Using Linear Regression: Predicting Wholl Win the Super Bowl

Chi-Square and Some Other Nonparametric Tests: What to Do When Youre Not Normal

Some Other Importantstatistical Procedures You Should Know About

An Introduction to Data Mining

Filters