Question 1

With a sample mean of 10,a population average of 15,and a standard error of the mean of 10,calculate the observed z value.

Accepted Answer

A) 2.5 
B) -0.5 
C) 0.5 
D) 2.0 
A) 2.5 
B) -0.5 
C) 0.5 
D) 2.0

Question 2

If you have a population standard deviation of 10 and a sample size of 4,what is your standard error of the mean?

Accepted Answer

A) -5 
B) 14 
C) 6 
D) 5 
A) -5 
B) 14 
C) 6 
D) 5

Question 3

According to your text,there are eight steps that you should follow in order to compute and interpret a Z-test statistic manually.

Accepted Answer

A) True 
 B)False

Question 4

The null hypothesis in a one-sample Z-test would be represented as follows:

Accepted Answer

A) H0: $\mu$ 1 =$\mu$ 2 
B) H0:      = µ 
C) H1: X1 = X2 
D) H1:      = µ 
A) H0: $\mu$ 1 =$\mu$ 2 
B) H0:      = µ 
C) H1: X1 = X2 
D) H1:      = µ

Question 5

If you have a sample size of 16 and a population standard deviation of 40,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 6

The one-sample Z-test is used to compare the ______ to the ______.

Accepted Answer

A) mean of a sample;mean of a population 
B) mean of a population;mean of a sample 
C) mean of a sample;mean of a second sample 
D) mean of a population;mean of a second population 
A) mean of a sample;mean of a population 
B) mean of a population;mean of a sample 
C) mean of a sample;mean of a second sample 
D) mean of a population;mean of a second population

Question 7

A large effect size is any value above 0.8.

Accepted Answer

A) True 
 B)False

Question 8

What is the denominator in the equation for the z value in a one-sample Z-test?

Accepted Answer

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

Question 9

If the sample mean is 20,the population average is 10,and the standard error of the mean is 2,what is the observed z value?

Accepted Answer

A) -5 
B) 5 
C) 0 
D) 50 
A) -5 
B) 5 
C) 0 
D) 50

Question 10

Write the formula of a directional or nondirectional research hypothesis for the following research problem: The Geography Department is interested in finding out if the average GPA of this year's graduating seniors is comparable to the average GPA of graduating seniors over the last 40 years.

Accepted Answer

The answer of Write the formula of a directional or...

Question 11

If you have a sample size of 4 and a population standard deviation of 12,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 12

Mr.Moo would like to find out if his daisies grow at a faster average rate than the average rate of daisy growth in his neighborhood.State this as a research hypothesis.

Accepted Answer

The average rate of growth for

Question 13

What is the standard error of the mean when you have a sample size of 144 and a population standard deviation of 9?

Accepted Answer

A) 7.5 
B) 0.75 
C) 12 
D) 8 
A) 7.5 
B) 0.75 
C) 12 
D) 8

Question 14

What is the meaning of SEM in the formula for calculating a z score?

Accepted Answer

A) standard error of the median 
B) standard ease of the mean 
C) standard error of the mode 
D) standard ease of the mean. 
A) standard error of the median 
B) standard ease of the mean 
C) standard error of the mode 
D) standard ease of the mean.

Question 15

Dr.Meow teaches Engineering Science 101 and is interested in finding out whether her students perform better on math tests compared to all of the engineering students in the university.State this as a null hypothesis.

Accepted Answer

Dr.Meow's students do not perf

Question 16

If you have a population standard deviation of 7 and a sample size of 100,what is your standard error of the mean?

Accepted Answer

A) -3.0 
B) 7.0 
C) 10.0 
D) 0.7 
A) -3.0 
B) 7.0 
C) 10.0 
D) 0.7

Question 17

How is the standard error of the mean calculated?

Accepted Answer

A) the population standard deviation divided by the square root of the size of the sample 
B) the population standard deviation divided by the size of the sample 
C) the square root of the size of the sample divided by the population standard deviation 
D) the sample standard deviation divided by the size of the sample 
A) the population standard deviation divided by the square root of the size of the sample 
B) the population standard deviation divided by the size of the sample 
C) the square root of the size of the sample divided by the population standard deviation 
D) the sample standard deviation divided by the size of the sample

Question 18

If you have a population standard deviation of 18 and a sample size of 81,what is your standard error of the mean?

Accepted Answer

A) -3.0 
B) 2.0 
C) -2.0 
D) 9.0 
A) -3.0 
B) 2.0 
C) -2.0 
D) 9.0

Question 19

A one-sample Z-test can be used to compare the mean of two samples.

Accepted Answer

A) True 
 B)False

Question 20

How many groups are compared in a one-sample Z-test?

Accepted Answer

A) 1 
B) 2 or more 
C) 3 
D) 4 
A) 1 
B) 2 or more 
C) 3 
D) 4

With a sample mean of 10,a population average of 15,and a standard error of the mean of 10,calculate the observed z value.

If you have a population standard deviation of 10 and a sample size of 4,what is your standard error of the mean?

According to your text,there are eight steps that you should follow in order to compute and interpret a Z-test statistic manually.

The null hypothesis in a one-sample Z-test would be represented as follows:

If you have a sample size of 16 and a population standard deviation of 40,what is your standard error of the mean?

The one-sample Z-test is used to compare the to the .

A large effect size is any value above 0.8.

What is the denominator in the equation for the z value in a one-sample Z-test?

If the sample mean is 20,the population average is 10,and the standard error of the mean is 2,what is the observed z value?

Write the formula of a directional or nondirectional research hypothesis for the following research problem: The Geography Department is interested in finding out if the average GPA of this year's graduating seniors is comparable to the average GPA of graduating seniors over the last 40 years.

If you have a sample size of 4 and a population standard deviation of 12,what is your standard error of the mean?

Mr.Moo would like to find out if his daisies grow at a faster average rate than the average rate of daisy growth in his neighborhood.State this as a research hypothesis.

What is the standard error of the mean when you have a sample size of 144 and a population standard deviation of 9?

What is the meaning of SEM in the formula for calculating a z score?

Dr.Meow teaches Engineering Science 101 and is interested in finding out whether her students perform better on math tests compared to all of the engineering students in the university.State this as a null hypothesis.

If you have a population standard deviation of 7 and a sample size of 100,what is your standard error of the mean?

How is the standard error of the mean calculated?

If you have a population standard deviation of 18 and a sample size of 81,what is your standard error of the mean?

A one-sample Z-test can be used to compare the mean of two samples.

How many groups are compared in a one-sample Z-test?

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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

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Some Other Importantstatistical Procedures You Should Know About

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Filters

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

With a sample mean of 10,a population average of 15,and a standard error of the mean of 10,calculate the observed z value.

If you have a population standard deviation of 10 and a sample size of 4,what is your standard error of the mean?

According to your text,there are eight steps that you should follow in order to compute and interpret a Z-test statistic manually.

The null hypothesis in a one-sample Z-test would be represented as follows:

If you have a sample size of 16 and a population standard deviation of 40,what is your standard error of the mean?

The one-sample Z-test is used to compare the ______ to the ______.

A large effect size is any value above 0.8.

What is the denominator in the equation for the z value in a one-sample Z-test?

If the sample mean is 20,the population average is 10,and the standard error of the mean is 2,what is the observed z value?

Write the formula of a directional or nondirectional research hypothesis for the following research problem: The Geography Department is interested in finding out if the average GPA of this year's graduating seniors is comparable to the average GPA of graduating seniors over the last 40 years.

If you have a sample size of 4 and a population standard deviation of 12,what is your standard error of the mean?

Mr.Moo would like to find out if his daisies grow at a faster average rate than the average rate of daisy growth in his neighborhood.State this as a research hypothesis.

What is the standard error of the mean when you have a sample size of 144 and a population standard deviation of 9?

What is the meaning of SEM in the formula for calculating a z score?

Dr.Meow teaches Engineering Science 101 and is interested in finding out whether her students perform better on math tests compared to all of the engineering students in the university.State this as a null hypothesis.

If you have a population standard deviation of 7 and a sample size of 100,what is your standard error of the mean?

How is the standard error of the mean calculated?

If you have a population standard deviation of 18 and a sample size of 81,what is your standard error of the mean?

A one-sample Z-test can be used to compare the mean of two samples.

How many groups are compared in a one-sample Z-test?

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

The one-sample Z-test is used to compare the to the .