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Question
When a local television station sends a crew to interview joggers in the city park on a beautiful spring day, this represents what type of sample?a. cluster sample
b. multistage area sample
c. systematic sample
d. convenience sample
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):
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The independent samples t-test tests the differences between means taken from two independent samples or groups.
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Practically speaking, what is the first thing a researcher should do when interpreting ANOVA results?
a. examine the actual means for each group
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The key statistical test for an ANOVA model is the _____.
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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?
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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
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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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b. unobtrusive method
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Q:
All of the following are examples of an observation study EXCEPT ____.
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