Question 1

Which of the following standard error values corresponds to 95 percent level of confidence?
A)2.69
B)3.14
C)1.96
D)2.58
E)1.52

Accepted Answer

The standard error value for a 95% confidence level is always 1.96.

Question 2

________ is a set of procedures in which the sample size and sample statistics are used to make an estimate of the corresponding population parameter.
A)Statistical inference
B)Frequency distribution
C)Hypothesis testing
D)Predictive analysis
E)Standard deviation

Accepted Answer

Statistical inference is the process of using sample data to make generalizations about a larger population. This involves making estimates of population parameters (such as means or proportions) based on sample statistics (such as sample means or sample proportions). Hypothesis testing and predictive analysis are two types of statistical inference, but the description in the question better matches the broad definition of statistical inference. Frequency distribution and standard deviation are not related to the concept of statistical inference.

Question 3

Ping Golf,Inc. ,conducts a study in which they use a probability sample of 600 golfers.They examine the data from the sample and calculate that 28 percent of them own Ping golf clubs.The 28 percent is the:
A)variance.
B)sample statistic.
C)measure of central tendency.
D)the population parameter.
E)the grand mean.

Accepted Answer

The 28 percent is a sample statistic, which is a value calculated from the data of a probability sample. It cannot be a population parameter, which is a value calculated from the entire population, or a measure of central tendency, which refers to the center of a distribution of values such as mean or median. It also cannot be the variance or the grand mean as these are specific statistical calculations.

Question 4

Values that are computed from a complete census,which are considered to be precise and valid measures of the population,are referred to as:
A)parameters.
B)statistics.
C)median.
D)range.
E)standard deviation.

Accepted Answer

Parameters are values that accurately describe the population, and a complete census provides data for the entire population, therefore the values computed from a complete census are considered parameters.

Question 5

The square of standard deviation is known as:
A)a median.
B)variance.
C)standard deviation.
D)sample size.
E)range.

Accepted Answer

The square of standard deviation is known as variance.

Question 6

A demographic question like,"On a scale of 1 to 5,how does Starbucks rate on variety of its coffee drinks?" should have which of the following central tendency measure for the responses?
A)mode
B)variance
C)median
D)range
E)mean

Accepted Answer

On a scale of 1 to 5, the responses are numerical data and can be measured using a central tendency measure like mean, which represents the average rating for variety of coffee drinks based on the responses provided. The mode, median, range, and variance are not suitable measures for rating the variety of coffee drinks on a scale of 1 to 5.

Question 7

To address ________,the square root of the entire equation for the standard deviation is taken.
A)break-offs
B)variance
C)inflation
D)inference
E)range

Accepted Answer

The answer of To address ________,the square root of the...

Question 8

The ________ procedure is used to produce descriptive statistics for variables with nominal or ordinal scaling.
A)ANALYZE-DESCRIPTIVE STATISTICS-RATIO
B)ANALYZE-DESCRIPTIVE STATISTICS-FREQUENCIES
C)ANALYZE-DESCRIPTIVE STATISTICS-DESCRIPTIVES
D)ANALYZE-DESCRIPTIVE STATISTICS-EXPLORE
E)ANALYZE-DESCRIPTIVE STATISTICS-CROSSTABS

Accepted Answer

The FREQUENCIES procedure is specifically designed for variables with nominal or ordinal scaling to produce descriptive statistics such as counts, percentages, and measures of central tendency and variability. The other procedures listed may be useful for other types of variable scaling, but not for nominal or ordinal variables.

Question 9

Which of the following refers to a measure of the variability in the sampling distribution based on what is theoretically believed to occur if we were to take a multitude of independent samples from the same population?
A)multiple variance analysis
B)variance
C)standard error
D)predictive analysis
E)sample statistic

Accepted Answer

Standard error is a measure of the variability in the sampling distribution, indicating the degree of uncertainty associated with a sample statistic. It is based on what is theoretically believed to occur if we were to take a multitude of independent samples from the same population. The other options do not specifically refer to this concept.

Question 10

Values that are computed from information provided by a sample are referred to as the sample's:
A)parameters.
B)statistics.
C)median.
D)range.
E)standard deviation.

Accepted Answer

Parameters are values computed from the entire population, while statistics are values computed from a sample. Therefore, the values computed from information provided by a sample are referred to as the sample's statistics. The other options (median, range, and standard deviation) are also descriptive measures but they do not refer specifically to computed values from a sample.

Question 11

The ________ indicates the degree of variation or diversity in the values in such a way as to be translatable into a normal or bell-shaped curve distribution.
A)median
B)variance
C)standard deviation
D)sample size
E)range

Accepted Answer

Standard deviation is a measure of the amount of variation or dispersion of a set of values in relation to their mean, and it is commonly used to describe the distribution of data in a normal or bell-shaped curve. The higher the standard deviation, the more spread out the data is.

Question 12

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

Accepted Answer

A 99 percent confidence interval means that if we took many samples from the population, 99 percent of all the samples would contain a range that included the population parameter. This means that there is a high probability that the true population parameter falls within the interval we calculated from the sample. It does not give us information about the percentage of the whole sample or the percentage of samples that would allow us to estimate the mean within ±1 percent.

Question 13

If you have five friends who tell you they all have had a great experience with their purchase of a Chevrolet,and if you use this fact to decide to buy a Chevrolet,the form of logic evident here is a(n):
A)median.
B)statistic.
C)inference.
D)variance.
E)parameter.

Accepted Answer

The form of logic evident here is inference, as you are inferring that because five friends had a great experience with their purchase of a Chevrolet, you will also have a positive experience.

Question 14

________ are the degree of accuracy desired by the researcher and stipulated as a level of confidence in the form of a range with a lower boundary and an upper boundary.
A)Measures of variability
B)Confidence intervals
C)Standard percentages
D)Parameter estimates
E)Statistical inferences

Accepted Answer

Confidence intervals are the range of values within which the population parameter is expected to fall with a certain level of confidence. They reflect the degree of accuracy desired by the researcher and are typically set at a certain level, such as 95% or 99%. Measures of variability, standard percentages, parameter estimates, and statistical inferences are all related to statistical analysis but do not directly relate to the range of confidence desired by the researcher.

Question 15

________ is used to compare the sample statistic with what is believed to be the population value prior to undertaking the study.
A)Sample estimation
B)Hypothesis testing
C)Parameter estimation
D)Predictive analysis
E)Regression analysis

Accepted Answer

Hypothesis testing is used to determine if the sample statistic significantly differs from the population value assumed before the study. Sample estimation and parameter estimation are techniques used to estimate the population value based on the sample, while predictive analysis and regression analysis are used to make predictions based on existing data.

Question 16

________ 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.
A)Inference
B)Variance
C)Median
D)Range
E)Standard deviation

Accepted Answer

This process is called induction or inductive reasoning, which involves making generalizations based on specific observations or evidence. Inference refers to the process of drawing conclusions or making assumptions based on available information. The other options are measures of central tendency and variability in statistics.

Question 17

The two types of statistical inferences often used by marketing researchers are:
A)frequency distributions and standard deviations.
B)regression analyses and measures of variability.
C)parameter estimates and hypothesis tests.
D)descriptive analyses and predictive analyses.
E)medians and modes.

Accepted Answer

Parameter estimates (estimating population parameters from sample data) and hypothesis tests (testing of hypotheses about population parameters) are the two main types of statistical inferences used by marketing researchers. These inferences allow researchers to draw conclusions about a larger population based on data collected from a smaller sample.

Question 18

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

Accepted Answer

The process described is called parameter estimation, which involves using sample information to estimate a population parameter such as mean or percentage. Choices A, B, D, and E do not fit the description given.

Question 19

When reporting scale data to clients,which of the following descriptive measures should be absolutely included in a standard metric variable table?
A)variance
B)average
C)median
D)mode
E)range

Accepted Answer

The average (mean) is a fundamental descriptive measure that provides a central value for the data set, making it essential for reporting scale data.

Question 20

A demographic question like,"What is your gender?" should have which of the following central tendency measure for the responses?
A)mode
B)variance
C)median
D)range
E)mean

Accepted Answer

The mode is the most appropriate measure of central tendency for categorical data like gender, as it identifies the most frequently occurring category.

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

Which of the following standard error values corresponds to 95 percent level of confidence?

________ is a set of procedures in which the sample size and sample statistics are used to make an estimate of the corresponding population parameter.

Ping Golf,Inc. ,conducts a study in which they use a probability sample of 600 golfers.They examine the data from the sample and calculate that 28 percent of them own Ping golf clubs.The 28 percent is the:

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

The square of standard deviation is known as:

A demographic question like,"On a scale of 1 to 5,how does Starbucks rate on variety of its coffee drinks?" should have which of the following central tendency measure for the responses?

To address ________,the square root of the entire equation for the standard deviation is taken.

The ________ procedure is used to produce descriptive statistics for variables with nominal or ordinal scaling.

Which of the following refers to a measure of the variability in the sampling distribution based on what is theoretically believed to occur if we were to take a multitude of independent samples from the same population?

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

The ________ indicates the degree of variation or diversity in the values in such a way as to be translatable into a normal or bell-shaped curve distribution.

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

If you have five friends who tell you they all have had a great experience with their purchase of a Chevrolet,and if you use this fact to decide to buy a Chevrolet,the form of logic evident here is a(n) :

________ are the degree of accuracy desired by the researcher and stipulated as a level of confidence in the form of a range with a lower boundary and an upper boundary.

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

________ 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 two types of statistical inferences often used by marketing researchers are:

________ 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.

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

A demographic question like,"What is your gender?" should have which of the following central tendency measure for the responses?