If you were interested in analyzing difference between 3 or more means, the most appropriate statistical analysis would be ______.
Answer
Correct Answer:
ANOVA
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You are interested in whether people in a particular community have a preference for a particular activity when given a choice between golf, softball, and soccer. What would be the appropriate statistical test?
Answer
Correct Answer:
Chi-square goodness of fit test
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Cramér’s ɸ can be used for the test of goodness of fit but not for the test of independence.
Answer
Correct Answer:
False
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A ɸ = .5 size is considered ______.
Answer
Correct Answer:
A large effect
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A Chi-square statistic of 18.74 with df = 3 would be reported as ______.
Answer
Correct Answer:
P < .01
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The appropriate use of the Chi-square statistic is based on meeting two assumptions: the independence of observations and minimum expected frequencies.
Answer
Correct Answer:
True
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Different procedures are used to determine expected frequencies for the Chi-square test for independence versus the Chi-square test for goodness of fit.
Answer
Correct Answer:
True
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When conducting a Chi-square goodness of fit test, degrees of freedom would be ______.
Answer
Correct Answer:
# groups – 1
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The Chi-square goodness of fit test and the Chi-square test for independence are nonparametric tests.
Answer
Correct Answer:
True
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You are interested in whether there is a difference in the pattern of preference in men versus women when given a choice between golf, softball, and soccer. What would be the appropriate statistical test?
Answer
Correct Answer:
Chi-square test of independence
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If you wanted to investigate whether the color preference for M&Ms was the same for men versus women, the most appropriate statistical test would be the Chi-square test for goodness of fit.
Answer
Correct Answer:
False
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A calculated value of the Chi-square statistic that falls between the .05 and .01 critical values would be reported as ______.
Answer
Correct Answer:
P < .05
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The appropriate test for analyzing frequencies is ______.
Answer
Correct Answer:
Chi-square
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Which of the following is considered a parametric statistical test?
Answer
Correct Answer:
Pearson correlation
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When conducting a Chi-square test of independence, degrees of freedom would be ______.
Answer
Correct Answer:
(# rows – 1) (# columns – 1)
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Non parametric statistical tests that do not involve the estimation of population parameters or the assumption that scores for a variable are normally distributed in the larger population.
Answer
Correct Answer:
True
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Chi square test of independence of Statistics that tests the difference between the distribution of observed frequencies and expected frequencies for ____ categorical variables.
Answer
Correct Answer:
Two
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Assumes that sample data comes from a population that can be adequately modeled by probability distribution has fixed set of parameters is called
Answer
Correct Answer:
Parametric statistics
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In which table the rows and columns represent the values of categorical variables and the cells contain observed frequencies for combinations of the variables?
Answer
Correct Answer:
Contingency table
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Chi-square statistic used when any of the expected frequencies in a sample of data are between 5 and 10 is ____ correction for continuity
Answer
Correct Answer:
Yates
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____ exact test is the chi square statistic used if any of the expected frequencies in a sample of data are less than 5.
Answer
Correct Answer:
Fishers
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Assumption of independence of observations is the assumption that each observation in a set of data is independent of all other observations.
Answer
Correct Answer:
True
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______ measure of effect size for the chi-square statistic.
Answer
Correct Answer:
Cramers
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Statistic that tests the difference between the distribution of observed frequencies and expected frequencies for a single variable is chi square goodness of fit test
Answer
Correct Answer:
True
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Chi square statistic that tests the difference between the distribution of observed frequencies and expected frequencies.
Answer
Correct Answer:
True
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Frequency of a group expected to occur in a sample of data under the assumption the null hypothesis is true is called
Answer
Correct Answer:
Expected frequency
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Frequency of a group in the sample of data is called
Answer
Correct Answer:
Observed frequency
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