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Question
Which of the following is a measure of the central tendency of a set of scores?a. mode
b. median
c. mean
d. all of these choices
Answer
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Related questions
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Sketch an example of each of the following (be sure to label everything clearly):
a. table
b. pie chart
c. line graph
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Any material that is too technical or too detailed should go in the element of the research report called the _____.
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The arrangement of the parts of a research report needed to create a good report is known as the ______.
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Which of the following contain the captions for the rows of a table?
a. boxheads
b. footnotes
c. source notes
d. stubheads
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The findings of the study should be presented in the ________ section.
a. results
b. recommendations
c. appendix
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a. title page
b. executive summary
c. body
d. all of these choices
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The bannerhead heads of a table contain the captions for the columns of the table.
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The total mean is the mean of a variable over all observations.
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When no direction of a relationship is stated in the hypothesis, a one-tailed test is appropriate.
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The independent samples t-test tests the differences between means taken from two independent samples or groups.
Q:
A cross-tabulation is a simple way to describe the relationships between two groups.
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The type of measurement, the nature of the comparison, and the number of groups to be compared influence the statistical choice.
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List the steps in interpreting a multiple regression model.
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Explain what a Z-test for comparing two proportions is and the appropriate hypothesis.
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The _____ is the mean of a variable over all observations.
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One way to interpret the meaning of the results of the t-test is to focus on the ________ and the group means.
Q:
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.
Q:
Practically speaking, what is the first thing a researcher should do when interpreting ANOVA results?
a. examine the actual means for each group
b. determine the between-groups variance
c. examine the total variance
d. check whether or not the overall model Fis significant
Q:
The key statistical test for an ANOVA model is the _____.
a. c2test
b. t-test
c. F-test
d. Z-test
Q:
Which of the following is the sum of differences between the group mean and the grand mean summed over all groups for a given set of observations?
a. between-groups variance
b. total error variance
c. F-statistic
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Q:
In a study comparing the means of two groups in which there are 45 males in Group 1 and 37 females in Group 2, the degrees of freedom for this study when using the t-test for the difference between means is:
a. 84
b. 80
c. 82
d. 160
Q:
In using the t-test to compare the means of two groups, the degrees of freedom are calculated as _____.
a. n1 - n2- 2
b. n1+ n2- 2
c. n1x n2-2
d. n1/ n2- 2
Q:
Compare and contrast exploratory, descriptive, and causal research. Which approach is the best?
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Checking the data collection forms to correct omissions, illegibly written responses, and the consistency of answers is called ______.
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Any procedure that involves selecting a small number of people who are part of a larger population of people is called ______.
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Information from a marketing research study conducted by the company last year assessing consumers' attitudes toward the company's brands is an example of ______.
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The application of computation, summarizing, and reasoning to understand the gathered information is called _____.
a. data transformation
b. editing
c. coding
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Evan has completed the fieldwork of collecting data, and now he is checking the data collection forms for omissions, legibility, and consistency in classification. What is Evan doing?
a. analyzing the data
b. editing the data
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d. reporting the results
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When drivers are unaware that a machine is recording how many cars pass a certain intersection that is being considered for a site for a new Wendy's franchise, this is an example of a(n) _____.
a. obtrusive method
b. unobtrusive method
c. experiment
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Q:
All of the following are examples of an observation study EXCEPT ____.
a. a mystery shopper pretending to be a customer in a McDonald's outlet
b. a cable laid across the street that records the number of cars that pass a certain intersection
c. scanning and recording bar codes of products purchased
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