Statistics and Probability

The measure of dispersion which sums the absolute values of the differences between the individual ...

The measure of dispersion which sums the absolute values of the differences between the individual ...

The measure of dispersion which sums the absolute values of the differences between the individual values and the mean, and then divides by the number of individual values is known as the ____________________.
 Fill in the blank(s) with correct

slapaburger   29   1 Reply

m7md9078

In order to specify the minimum percentage of observations that will fall within a given number of ...

In order to specify the minimum percentage of observations that will fall within a given number of ...

In order to specify the minimum percentage of observations that will fall within a given number of standard deviations from the mean, ____________________ applies to any distribution, regardless of shape of the distribution, while the _______________

k123p   27   1 Reply

vbass

The ____________________ is a graphical device that simultaneously displays several of the measures ...

The ____________________ is a graphical device that simultaneously displays several of the measures ...

The ____________________ is a graphical device that simultaneously displays several of the measures of central tendency and dispersion.
 Fill in the blank(s) with correct word

escoba   59   2 Replies

escoba

If the coefficient of correlation r is positive, the dependent variable y and the independent ...

If the coefficient of correlation r is positive, the dependent variable y and the independent ...

If the coefficient of correlation r is positive, the dependent variable y and the independent variable x are said to be ____________________ related.
 Fill in the blank(s) with correct word

lingo   54   1 Reply

alarose

If the coefficient of correlation r is negative, the dependent variable y and the independent ...

If the coefficient of correlation r is negative, the dependent variable y and the independent ...

If the coefficient of correlation r is negative, the dependent variable y and the independent variable x are said to be ____________________ related.
 Fill in the blank(s) with correct word

tmontes00   55   1 Reply

Bubbbles

Compute the mean, median, and mode from these data: 1.2, 1.6, 2.1, 1.2, 1.8, 2.2, 1.2, 1.6, 1.8, and ...

Compute the mean, median, and mode from these data: 1.2, 1.6, 2.1, 1.2, 1.8, 2.2, 1.2, 1.6, 1.8, and ...

Compute the mean, median, and mode from these data: 1.2, 1.6, 2.1, 1.2, 1.8, 2.2, 1.2, 1.6, 1.8, and 2.0. Mean = ____________________ Median = ____________________ Mode = ____________________
 Fill in the blank(s) with correct word

aggotfay   45   1 Reply

umass508

The average order size for a home shopping company follows a bell-shaped and symmetrical ...

The average order size for a home shopping company follows a bell-shaped and symmetrical ...

The average order size for a home shopping company follows a bell-shaped and symmetrical distribution has a mean equal to 75 and a standard deviation equal to 10 . What range of sales order size would we expect to see 95 percent of the time?

Mserna19   96   1 Reply

ruff

The chapter notes that the standard deviation will always be larger than the mean absolute ...

The chapter notes that the standard deviation will always be larger than the mean absolute ...

The chapter notes that the standard deviation will always be larger than the mean absolute deviation. Explain why.

Haydena   27   1 Reply

gool34

In a given data sample, the mean is larger than the median, and both are larger than the mode. ...

In a given data sample, the mean is larger than the median, and both are larger than the mode. ...

In a given data sample, the mean is larger than the median, and both are larger than the mode. Identify and illustrate the shape of the distribution.

jprust87   68   1 Reply

Fredio

A data sample has a mean of 107, a median of 122, and a mode of 134 . What type of distribution does ...

A data sample has a mean of 107, a median of 122, and a mode of 134 . What type of distribution does ...

A data sample has a mean of 107, a median of 122, and a mode of 134 . What type of distribution does it have? Why?

k123p   58   2 Replies

k123p

Consider the following sample data: 4, 14, 6, 9, 21, 3, 7, and 10. What is the mode?

Consider the following sample data: 4, 14, 6, 9, 21, 3, 7, and 10. What is the mode?

Consider the following sample data: 4, 14, 6, 9, 21, 3, 7, and 10. What is the mode?

RENCEE72   31   1 Reply

hahauebf

An economics student searches the Survey of Current Business for gross domestic product data as a ...

An economics student searches the Survey of Current Business for gross domestic product data as a ...

An economics student searches the Survey of Current Business for gross domestic product data as a class report item. This is an example of using primary data.
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gracehiller11   119   1 Reply

WillGross3

Causal research helps us become familiar with the problem situation, identify important variables, ...

Causal research helps us become familiar with the problem situation, identify important variables, ...

Causal research helps us become familiar with the problem situation, identify important variables, and use other variables to form hypotheses that can be tested in subsequent research.
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aggotfay   63   1 Reply

Yatesm

In causal research, the objective is to determine if one variable has an effect on another. ...

In causal research, the objective is to determine if one variable has an effect on another. ...

In causal research, the objective is to determine if one variable has an effect on another.
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arichman7730   38   1 Reply

al

Exploratory research can be of a qualitative nature. Indicate whether the statement is true or false

Exploratory research can be of a qualitative nature. Indicate whether the statement is true or false

Exploratory research can be of a qualitative nature.
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gracehiller11   54   1 Reply

Macdonaldc

Regarding causal studies, it should be pointed out that statistical techniques alone can prove ...

Regarding causal studies, it should be pointed out that statistical techniques alone can prove ...

Regarding causal studies, it should be pointed out that statistical techniques alone can prove causality.
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LRotundo   51   1 Reply

tiss9889

A sample consisting of firms or persons who have engaged in a specific behavior or activity are said ...

A sample consisting of firms or persons who have engaged in a specific behavior or activity are said ...

A sample consisting of firms or persons who have engaged in a specific behavior or activity are said to be taken from a compiled list.
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fundai!   39   1 Reply

kmoralesss

Response error can occur when an individual fails to return a questionnaire. Indicate whether the ...

Response error can occur when an individual fails to return a questionnaire. Indicate whether the ...

Response error can occur when an individual fails to return a questionnaire.
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infantryman1986   66   1 Reply

Fredio

External validity refers to whether the experimental treatment really made the difference in the ...

External validity refers to whether the experimental treatment really made the difference in the ...

External validity refers to whether the experimental treatment really made the difference in the measurements obtained.
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tmontes00   46   1 Reply

somedaysunday

There are two key variables in an experiment: the independent variable (or treatment) and the ...

There are two key variables in an experiment: the independent variable (or treatment) and the ...

There are two key variables in an experiment: the independent variable (or treatment) and the dependent variable (or measurement).
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aggotfay   27   1 Reply

eehughess

The persons or objects receiving a treatment in an experiment are said to be in the control group. ...

The persons or objects receiving a treatment in an experiment are said to be in the control group. ...

The persons or objects receiving a treatment in an experiment are said to be in the control group.
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infantryman1986   51   1 Reply

JMENDEZ

Factor analysis is a set of techniques for studying interrelationships among variables. This is done ...

Factor analysis is a set of techniques for studying interrelationships among variables. This is done ...

Factor analysis is a set of techniques for studying interrelationships among variables. This is done by reducing a very large set of variables to a smaller set of new variables (factors) that are more basic in meaning but contain most of the informat

zns889   58   1 Reply

sophiakhalid12

A statistic is a characteristic of a sample such as the sample mean or sample standard deviation. ...

A statistic is a characteristic of a sample such as the sample mean or sample standard deviation. ...

A statistic is a characteristic of a sample such as the sample mean or sample standard deviation.
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gracehiller11   109   1 Reply

Gavaacon

The convenience sample is an example of probability sampling where every person or element in the ...

The convenience sample is an example of probability sampling where every person or element in the ...

The convenience sample is an example of probability sampling where every person or element in the population may not have an equal chance for inclusion in the sample.
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jldobro   70   1 Reply

m7md9078

The quota sample is an example of nonprobability sampling that is similar to the stratified ...

The quota sample is an example of nonprobability sampling that is similar to the stratified ...

The quota sample is an example of nonprobability sampling that is similar to the stratified probability sample, except that members of the various strata are not chosen through the use of a probability sampling technique.
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KAtlold   60   1 Reply

Kojico

Business research studies can be categorized according to the objective involved and may be ...

Business research studies can be categorized according to the objective involved and may be ...

Business research studies can be categorized according to the objective involved and may be exploratory, descriptive, causal, or predictive.
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k123p   44   1 Reply

Fvhdan

Secondary data tends to require more time and expense, but have the advantage of being more ...

Secondary data tends to require more time and expense, but have the advantage of being more ...

Secondary data tends to require more time and expense, but have the advantage of being more applicable to the research problem or situation.
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alexisblack   27   1 Reply

rachey

In practice, most studies involve relatively large populations for which taking a sample can provide ...

In practice, most studies involve relatively large populations for which taking a sample can provide ...

In practice, most studies involve relatively large populations for which taking a sample can provide satisfactory results much more quickly and at considerably lower cost than a census.
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slapaburger   30   2 Replies

slapaburger

Which of the following statements describe secondary external data?

Which of the following statements describe secondary external data?

Which of the following statements describe secondary external data?
 a. A manufacturer of semiconductors experiments with different designs and records the data.
  b. A mail order company conducts a telephone survey among recent purchasers

browniels   31   1 Reply

scates8

When a respondent indicates that he is 25 years old when he is actually 35 years old, he is ...

When a respondent indicates that he is 25 years old when he is actually 35 years old, he is ...

When a respondent indicates that he is 25 years old when he is actually 35 years old, he is contributing to:
 a. sampling error.
  b. response error.
  c. nonresponse error.
  d. bias.
  e. nonsampling error.

Jbev757   26   1 Reply

Kojico

The difference between a sample mean and the corresponding population mean is called a:

The difference between a sample mean and the corresponding population mean is called a:

The difference between a sample mean and the corresponding population mean is called a:
 a. nonresponse error
  b. systematic error
  c. sampling error
  d. response error
  e. bias

Theleeman   34   1 Reply

ruff

When a person receives a mail questionnaire and places it in the wastebasket, they are contributing ...

When a person receives a mail questionnaire and places it in the wastebasket, they are contributing ...

When a person receives a mail questionnaire and places it in the wastebasket, they are contributing to:
 a. sampling error
  b. response error
  c. nonresponse error
  d. nonsystematic error
  e. nonsampling error

thisisstupidash   47   1 Reply

irina99

Which of the following questionnaire designs allow the respondent to freely formulate his or her own ...

Which of the following questionnaire designs allow the respondent to freely formulate his or her own ...

Which of the following questionnaire designs allow the respondent to freely formulate his or her own answer and expand on the subject of the question?
 a. Multiple choice
  b. Dichotomous
  c. Open-ended
  d. All of the above

gracehiller11   44   1 Reply

nic

A characteristic of a sample, such as the sample mean or sample standard deviation, is known as ...

A characteristic of a sample, such as the sample mean or sample standard deviation, is known as ...

A characteristic of a sample, such as the sample mean or sample standard deviation, is known as a(n):
 a. population
  b. census
  c. parameter
  d. observation
  e. statistic

alexisblack   87   2 Replies

alexisblack

Which of the following is a correct statement?

Which of the following is a correct statement?

Which of the following is a correct statement?
 a. A parameter is a characteristic of the universe.
  b. A census is a measurement of a sample.
  c. A statistic describes a variable for the population.
  d. A census is always a b

Jbev757   24   1 Reply

JMENDEZ

When the sample mean differs from the population mean simply be chance, the error that results is ...

When the sample mean differs from the population mean simply be chance, the error that results is ...

When the sample mean differs from the population mean simply be chance, the error that results is known as:
 a. sampling error.
  b. response error.
  c. nonresponse error.
  d. bias.
  e. nonsystematic error.

love2211   23   1 Reply

Fredio

Which of the following represents an advantage of taking a sample?

Which of the following represents an advantage of taking a sample?

Which of the following represents an advantage of taking a sample?
 a. Less expense than a census.
  b. Can be completed in a timely fashion.
  c. Testing or measuring is a destructive process.
  d. The size of the population is

stroman54   23   1 Reply

derrickpate22

When is a sample a better choice than a census?

When is a sample a better choice than a census?

When is a sample a better choice than a census?
 a. When the population is changing over time.
  b. When taking the U.S. Census of the population.
  c. When some sampling error can be tolerated.
  d. When time is an important fac

rgasio   43   2 Replies

rgasio

An estimator is unbiased if the expected value of the sample statistic is the same as the actual ...

An estimator is unbiased if the expected value of the sample statistic is the same as the actual ...

An estimator is unbiased if the expected value of the sample statistic is the same as the actual value of the population parameter it is intended to estimate.
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KAtlold   50   1 Reply

alarose

Which type of sampling would primarily be used in exploratory research studies where there is no ...

Which type of sampling would primarily be used in exploratory research studies where there is no ...

Which type of sampling would primarily be used in exploratory research studies where there is no intention of making statistical inferences from the sample to the population?
 a. probability sampling
  b. nonprobability sampling
  c.

tmontes00   56   1 Reply

nic