Question 1

Which type of data involves real numbers?

Accepted Answer

A) Nominal data 
B) Interval data 
C) Ordinal data 
D) None of these choices. 
A) Nominal data 
B) Interval data 
C) Ordinal data 
D) None of these choices. B

Question 2

We often use a(n)____________________ technique to analyze data when the conditions for a(n)____________________ technique are not satisfied.

Accepted Answer

nonparametric; parametric

Question 3

To ensure the validity of a statistical technique,we must first check the required ____________________.

Accepted Answer

conditions

Question 4

We can improve the exactitude of a confidence interval estimator by increasing the ____________________.

Accepted Answer

The answer of We can improve the exactitude of a...

Question 5

Which of the following data collection methods is more likely to lead to a definitive conclusion?

Accepted Answer

A) Data collected through observation. 
B) Data collected through an experiment. 
C) Data collected through the use of volunteers. 
D) Data collected through a survey. 
A) Data collected through observation. 
B) Data collected through an experiment. 
C) Data collected through the use of volunteers. 
D) Data collected through a survey.

Question 6

The statistical techniques used to analyze ordinal data are the same as those used to analyze interval data.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is an example of ordinal data?

Accepted Answer

A) The weight of a newborn baby. 
B) The gender of a baby. 
C) The number of siblings a baby has. 
D) Your order of preference of three baby names. 
A) The weight of a newborn baby. 
B) The gender of a baby. 
C) The number of siblings a baby has. 
D) Your order of preference of three baby names.

Question 8

The sampling distributions that are used for nominal data are the standard normal distribution and the:

Accepted Answer

A) Chi-squared distribution. 
B) Binomial distribution. 
C) F-distribution. 
D) Interval distribution. 
A) Chi-squared distribution. 
B) Binomial distribution. 
C) F-distribution. 
D) Interval distribution.

Question 9

____________________ techniques allow us to make estimates and draw conclusions about populations from samples.

Accepted Answer

The answer of ____________________ techniques allow us to make estimates...

Question 10

The same statistical techniques apply whether the data is interval,nominal,or ordinal.

Accepted Answer

A) True 
 B)False

Question 11

In any hypothesis test there are two possible errors,called ____________________ and ____________________.

Accepted Answer

Type I; Type II
 Typ

Question 12

The validity of any statistical outcome depends on the validity of its sample.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is NOT a type of data?

Accepted Answer

A) Parameter data 
B) Nominal data 
C) Ordinal data 
D) Interval data 
A) Parameter data 
B) Nominal data 
C) Ordinal data 
D) Interval data

Question 14

The width of a confidence interval ____________________ when more data is collected.

Accepted Answer

The answer of The width of a confidence interval ____________________...

Question 15

Which of the following statements is true?

Accepted Answer

A) Descriptive techniques summarize information from samples. 
B) Inferential techniques allow us to make estimates about a population. 
C) Inferential techniques allow us to draw conclusions about a population. 
D) All of these statements are true. 
A) Descriptive techniques summarize information from samples. 
B) Inferential techniques allow us to make estimates about a population. 
C) Inferential techniques allow us to draw conclusions about a population. 
D) All of these statements are true.

Question 16

Describe a plan for estimating the average GPA at your university by using inferential statistics.Include which statistical technique you plan to use to draw your conclusions.

Accepted Answer

Select a random sample of n students fro

Question 17

Formulas for confidence intervals and test statistics all come from ____________________ distributions.

Accepted Answer

The answer of Formulas for confidence intervals and test statistics...

Question 18

The source of statistical inference is the sampling distribution.

Accepted Answer

A) True 
 B)False

Question 19

A procedure with a very small probability of a Type I error will also have a very small probability of a Type II error.

Accepted Answer

A) True 
 B)False

Question 20

If the difference between the null hypothesis and your test statistic is very large,you reject the null hypothesis.

Accepted Answer

A) True 
 B)False

Exam 23: Conclusion

Which type of data involves real numbers?

We often use a(n)____________________ technique to analyze data when the conditions for a(n)____________________ technique are not satisfied.

To ensure the validity of a statistical technique,we must first check the required ____________________.

We can improve the exactitude of a confidence interval estimator by increasing the ____________________.

Which of the following data collection methods is more likely to lead to a definitive conclusion?

The statistical techniques used to analyze ordinal data are the same as those used to analyze interval data.

Which of the following is an example of ordinal data?

The sampling distributions that are used for nominal data are the standard normal distribution and the:

____________________ techniques allow us to make estimates and draw conclusions about populations from samples.

The same statistical techniques apply whether the data is interval,nominal,or ordinal.

In any hypothesis test there are two possible errors,called ____________________ and ____________________.

The validity of any statistical outcome depends on the validity of its sample.

Which of the following is NOT a type of data?

The width of a confidence interval ____________________ when more data is collected.

Which of the following statements is true?

Describe a plan for estimating the average GPA at your university by using inferential statistics.Include which statistical technique you plan to use to draw your conclusions.

Formulas for confidence intervals and test statistics all come from ____________________ distributions.

The source of statistical inference is the sampling distribution.

A procedure with a very small probability of a Type I error will also have a very small probability of a Type II error.

If the difference between the null hypothesis and your test statistic is very large,you reject the null hypothesis.

What Is Statistics

Graphical Descriptive Techniques 1

Graphical Descriptive Techniques 2

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Model Building

Nonparametric Statistics

Time-Series Analytics and Forecasting

Statistical Process Control

Decision Analysis

Filters

We often use a(n) technique to analyze data when the conditions for a(n) technique are not satisfied.

In any hypothesis test there are two possible errors,called and .