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Exam 16: Frequency Distribution,hypothesis Testing,and Cross-Tabulation

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Question 41

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In a short essay,discuss which measure of location should be used if the distribution is asymmetric.

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If the distribution is asymmetric,which ...

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Question 42

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In commercial marketing research,the ________ test is used more often than a ________ test.

A) one-tailed; two-tailed
B) two-tailed; one-tailed
C) exhaustive; inexhaustive
D) inexhaustive; exhaustive
E) B and C

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Question 43

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A measure of how close the sample has come to the null hypothesis is called the test statistic.

When the frequency in any cell of a contingency table is low,it is ________.

The null hypothesis,H₀,when using the chi-square statistic,is that there is no association between the variables.

Discuss the relationship between cross-tabulation and frequency distribution.

The ________ is that value obtained by summing all elements in a set and dividing by the number of elements.

According to the text,the ________ is a statistic that describes a location within a data set.

Type I error occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

If the calculated value of the test statistic is smaller than the critical value of the test statistic,the null hypothesis is rejected.

A measure of how close the sample has come to the null hypothesis is called the ________.

The ________ should be used as a measure of location if the distribution is asymmetric and the variable is measured on an ordinal scale.

According to the text,the measures of variability is a statistic that describes a location within a data set.

Standard deviation is the square root of the variance and is expressed in the same units as the data.

In a short essay,list and discuss the two types of errors that can occur whenever inferences are drawn about a population.

Frequency data may be used to construct a histogram,or a vertical bar chart.

The ________ is always the hypothesis that is tested,but can never be accepted based on a single test.

________ occurs when the sample results lead to the rejection of a null hypothesis that is in fact true.

Type II error occurs when the sample results lead to nonrejection of a null hypothesis that is in fact false.

A ________ is a cross-tabulation table that contains a cell for every combination of categories of the two variables.