Question 1

Values that are computed from information provided by a sample are referred to as the sample's parameter.

Accepted Answer

A) True 
 B)False

Question 2

Data gathering is defined as the process of describing a dataset by computing a small number of statistics that characterize various aspects of the data.

Accepted Answer

A) True 
 B)False

Question 3

The logic of hypothesis testing is that if we assume that the hypothesized value is the population parameter,then,at the 95 percent level of confidence,if we took 100 separate samples,the z value for 95 of those samples would fall between ±1.96.

Accepted Answer

A) True 
 B)False

Question 4

Inference is a form of logic in which you make a general statement about an entire class based on what you have observed about a small set of members of that class.

Accepted Answer

A) True 
 B)False

Question 5

The ________ is the arithmetic average of a set of numbers.

Accepted Answer

A) multiple 
B) matrix 
C) mode 
D) mean 
E) median

Question 6

Suppose we wish to test the hypothesis that an internship program allows its interns to earn $2,750 per semester and let us assume that this hypothesis is,in fact,true.Which of the following best illustrates the logic of hypothesis testing at the 95% confidence level?

Accepted Answer

A) From among 100 samples,95 percent of them would generate means that fell within ±1.96 z scores. 
B) From among 99 samples,100 percent of them would generate means that fell within ±2.58 z scores. 
C) From among 100 samples,95 percent of them would generate means that fell within ±2.58 z scores. 
D) From among 100 samples,99 percent of them would generate means that fell within ±1.96 z scores. 
E) From among 95 samples,100 percent of them would generate means that fell within ±1.96 z scores.

Question 7

A 99 percent confidence interval allows us to say that if we took many samples from the population:

Accepted Answer

A) the whole sample would contain a range that included the population parameter. 
B) 99 percent of all the samples would contain a range that included the population parameter. 
C) 99 percent of all the samples would allow us to estimate the mean within ±1 percent. 
D) 1 percent of all the samples would contain a range that included the population parameter. 
E) 1 percent of all the samples would allow us to estimate the mean within ±1 percent.

Question 8

________ is the process of using sample information to compute an interval that describes the range of a parameter such as a population mean or the population percentage.

Accepted Answer

A) Sample estimation 
B) Hypothesis testing 
C) Parameter estimation 
D) Predictive analysis 
E) Regression analysis

Question 9

________ is a statistical procedure used to accept or reject the hypothesis based on sample evidence.

Accepted Answer

A) Frequency distribution 
B) Standard deviation 
C) Hypothesis testing 
D) Parameter estimation 
E) Predictive analysis

Question 10

A parameter estimation is a statistical procedure used to accept or reject the hypothesis based on sample evidence.

Accepted Answer

A) True 
 B)False

Question 11

Statistical concepts such as correlation and cross-tabulation are forms of ________ analysis.

Accepted Answer

A) differences 
B) association 
C) predictive 
D) inference 
E) descriptive

Question 12

In parameter estimation,a value such as the population mean is estimated based on a sample's mean and its size.

Accepted Answer

A) True 
 B)False

Question 13

When reporting scale data to clients,which of the following descriptive measures should be absolutely included in a standard metric variable table?

Accepted Answer

A) variance 
B) average 
C) median 
D) mode 
E) range

Question 14

Measures of variability are concerned with depicting the typical difference between the values in a set of values.

Accepted Answer

A) True 
 B)False

Question 15

The ________ holds that our actual sample is one of the many theoretical samples comprising the assumed bell-shaped curve of possible sample results using the hypothesized value as the center of the bell-shaped distribution.

Accepted Answer

A) standard deviation 
B) sampling distribution concept 
C) standard error of the statistic 
D) hypothesized parameter value 
E) confidence interval

Question 16

The standard error will increase if sample size is increased.

Accepted Answer

A) True 
 B)False

Question 17

Parameter estimation is used to compare the sample statistic with what is believed to be the population value prior to undertaking the study.

Accepted Answer

A) True 
 B)False

Question 18

A(n)________ is a tabulation of the number of times that each different value appears in a particular set of values.

Accepted Answer

A) measure of central tendency 
B) hypotheses test 
C) standard deviation 
D) sample size 
E) frequency distribution

Question 19

Values that are computed from a complete census,which are considered to be precise and valid measures of the population,are referred to as parameters.

Accepted Answer

A) True 
 B)False

Question 20

Statistical concepts such as t tests of differences and analysis of variance are forms of ________ analysis.

Accepted Answer

A) differences 
B) association 
C) predictive 
D) inference 
E) descriptive

Exam 12: Using Basic Descriptive Analysis, performing Population Estimates, and Testing Hypotheses

Values that are computed from information provided by a sample are referred to as the sample's parameter.

Data gathering is defined as the process of describing a dataset by computing a small number of statistics that characterize various aspects of the data.

The logic of hypothesis testing is that if we assume that the hypothesized value is the population parameter,then,at the 95 percent level of confidence,if we took 100 separate samples,the z value for 95 of those samples would fall between ±1.96.

Inference is a form of logic in which you make a general statement about an entire class based on what you have observed about a small set of members of that class.

The ________ is the arithmetic average of a set of numbers.

Suppose we wish to test the hypothesis that an internship program allows its interns to earn $2,750 per semester and let us assume that this hypothesis is,in fact,true.Which of the following best illustrates the logic of hypothesis testing at the 95% confidence level?

A 99 percent confidence interval allows us to say that if we took many samples from the population:

________ is the process of using sample information to compute an interval that describes the range of a parameter such as a population mean or the population percentage.

________ is a statistical procedure used to accept or reject the hypothesis based on sample evidence.

A parameter estimation is a statistical procedure used to accept or reject the hypothesis based on sample evidence.

Statistical concepts such as correlation and cross-tabulation are forms of ________ analysis.

In parameter estimation,a value such as the population mean is estimated based on a sample's mean and its size.

When reporting scale data to clients,which of the following descriptive measures should be absolutely included in a standard metric variable table?

Measures of variability are concerned with depicting the typical difference between the values in a set of values.

The ________ holds that our actual sample is one of the many theoretical samples comprising the assumed bell-shaped curve of possible sample results using the hypothesized value as the center of the bell-shaped distribution.

The standard error will increase if sample size is increased.

Parameter estimation is used to compare the sample statistic with what is believed to be the population value prior to undertaking the study.

A(n) ________ is a tabulation of the number of times that each different value appears in a particular set of values.

Values that are computed from a complete census,which are considered to be precise and valid measures of the population,are referred to as parameters.

Statistical concepts such as t tests of differences and analysis of variance are forms of ________ analysis.