Question 1

Which of the following should be used to describe characteristics of a population?

Accepted Answer

A)  inferential statistics 
B)  population parameters 
C)  sample statistics 
D)  sampling error 
A)  inferential statistics 
B)  population parameters 
C)  sample statistics 
D)  sampling error

Question 2

Suppose a corporation has 2,000 employees with an average age of 36. If the standard deviation of age is 6 years, what is the standard error of the mean for this population?

Accepted Answer

A)  .003 
B)  .07 
C)  .13 
D)  .80 
A)  .003 
B)  .07 
C)  .13 
D)  .80

Question 3

Which of the following should be used to describe characteristics of a sample?

Accepted Answer

A)  inferential statistics 
B)  population parameters 
C)  sample statistics 
D)  population statistics 
A)  inferential statistics 
B)  population parameters 
C)  sample statistics 
D)  population statistics

Question 4

When working with proportions, maximum dispersion is achieved with a percent value of 	----------.

Accepted Answer

A)  25 
B)  50 
C)  75 
D)  100 
A)  25 
B)  50 
C)  75 
D)  100

Question 5

Use the following table from the 2006 GSS to answer questions :
RACE OF RESPONDENT
  
-What is the value of the measure of dispersion for the proportion other?

Accepted Answer

A)  .113 
B)  .131 
C)  .869 
D)  1 
A)  .113 
B)  .131 
C)  .869 
D)  1

Question 6

Which of the following should be used to generalize to a population?

Accepted Answer

A)  descriptive statistics 
B)  population parameters 
C)  sample statistics 
D)  degrees of freedom 
A)  descriptive statistics 
B)  population parameters 
C)  sample statistics 
D)  degrees of freedom

Question 7

Which of the following is NOT a type of nonrandom sample?

Accepted Answer

A)  cluster sample 
B)  snowball sample 
C)  convenience sample 
D)  quota sample 
A)  cluster sample 
B)  snowball sample 
C)  convenience sample 
D)  quota sample

Question 8

Suppose a sample of statistics students (N=30) has a distribution of grades with a mean of 70 and standard deviation of 15.
a. What is the standard error of the mean?
b.Report the 68% confidence interval.
c.Based on your response to part b, interpret the 68% confidence interval.
d.Report the 95% confidence interval.
e.Report the 99% confidence interval.

Accepted Answer

a.2.74
b.68% CI= 67.26 to 72.74
c.68% of

Question 9

To make the formula for the standard error of the mean applicable to sample data, the denominator changes to the square root of 	-----------.

Accepted Answer

A)  N-1 
B)  N 
C)  N+1 
D)  N2 
A)  N-1 
B)  N 
C)  N+1 
D)  N2

Question 10

Parameters are used to describe the characteristics of a sample.

Accepted Answer

A) True 
 B)False

Question 11

Null hypotheses predict that patterns do exist in data.

Accepted Answer

A) True 
 B)False

Which of the following should be used to describe characteristics of a population?

Suppose a corporation has 2,000 employees with an average age of 36. If the standard deviation of age is 6 years, what is the standard error of the mean for this population?

Which of the following should be used to describe characteristics of a sample?

When working with proportions, maximum dispersion is achieved with a percent value of ----------.

Use the following table from the 2006 GSS to answer questions : RACE OF RESPONDENT -What is the value of the measure of dispersion for the proportion other?

Which of the following should be used to generalize to a population?

Which of the following is NOT a type of nonrandom sample?

To make the formula for the standard error of the mean applicable to sample data, the denominator changes to the square root of -----------.

Parameters are used to describe the characteristics of a sample.

Null hypotheses predict that patterns do exist in data.

Concepts, Variables, and Measurement

Frequency Tables

Measures of Central Tendency

Measures of Dispersion

Probability and the Normal Curve

Cross-Tabulation Tables and Chi-Square

Measures of Association for Categorical Variables

Analysis of Variance

Correlation and Regression

Filters

Exam 6: Probabilityfrom Samples to Statistics

Which of the following should be used to describe characteristics of a population?

Suppose a corporation has 2,000 employees with an average age of 36. If the standard deviation of age is 6 years, what is the standard error of the mean for this population?

Which of the following should be used to describe characteristics of a sample?

When working with proportions, maximum dispersion is achieved with a percent value of ----------.

Use the following table from the 2006 GSS to answer questions : RACE OF RESPONDENT -What is the value of the measure of dispersion for the proportion other?

Which of the following should be used to generalize to a population?

Which of the following is NOT a type of nonrandom sample?

To make the formula for the standard error of the mean applicable to sample data, the denominator changes to the square root of -----------.

Parameters are used to describe the characteristics of a sample.

Null hypotheses predict that patterns do exist in data.

Concepts, Variables, and Measurement

Frequency Tables

Measures of Central Tendency

Measures of Dispersion

Probability and the Normal Curve

Cross-Tabulation Tables and Chi-Square

Measures of Association for Categorical Variables

Analysis of Variance

Correlation and Regression

Filters