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Question
A decision support system that gathers information about customers such as sales history and customer preferences is known as a(n) _____ system.Answer
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Related questions
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The researcher's hypothesis is generally stated in the form of a null hypothesis.
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When a researcher needs to compare means for a variable grouped into two categories based on some less-than interval variable, a(n) _____ test is appropriate.
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Proper use of the c2 test requires that each expected frequency have a value of at least _____.
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The formula for determining the degrees of freedom for a chi-square test is ______.
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In hypothesis testing, the values that lie exactly on the boundary of the region of rejection are referred to as the ______ values.
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Which of the following tests is conceptually similar to the one used when the mean is the characteristic of interest but that differs in the mathematical formulation of the standard error of the proportion?
A.hypothesis test of a proportion
B.c2 test
C.goodness of fit test
D.degrees of freedom test
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For which statistical test does the formula given below apply? A.Z-test
B.F-test
C.Chi-square test
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All of the following are software packages that can be used for data analysis EXCEPT _____.
A.Excel
B.SPSS
C.Word
D.SAS
Q:
Scores or observations recalibrated to indicate how they relate to a base number are referred to as _____.
A.index numbers
B.rank orders
C.elaborated numbers
D.real numbers
Q:
Data with which type of distribution are appropriate for division based on the median split?
A.normally distributed
B.unimodal distribution
C.bimodal distribution
D.uniform distribution
Q:
When a researcher combines the "Strongly Disagree" and "Disagree" responses on a Likert scale item to a single "Strongly Disagree/Disagree" percentage, this is an example of _____.
A.data indexing
B.collapsing the data
C.the outlier effect
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Breaking down the answer to the question: "Have you ever purchased a ticket online for an American Airlines flight?" into subgroups based on gender and zip code is an example of _____.
A.a box and whisker plot analysis
B.an index number
C.elaboration analysis
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The _____ is the number of respondents or observations used as a basis for computing percentages.
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When tabulation is done by hand to create a frequency table, this is called ______ the data.
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When the data are in ______ form, and the sample size is ______ , the researcher should use parametric statistical procedures.
A.nominal; large
B.ordinal; large
C.interval; large
D.nominal; small
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The two types of errors researcher run the risk of committing when sampling are _____.
A.primary and secondary errors
B.Type I and Type II errors
C.critical and noncritical errors
D.Type A and Type B errors