1.) A human resources manager wants to compare the average performance ratings b
ID: 3367738 • Letter: 1
Question
1.)A human resources manager wants to compare the average performance ratings between two different departments. The correct statistical test would be:
Chai Tea-Test.
One-sample t-test
Paired-samples t-test
Independent-samples t-test
2.)A manager of a direct-service social worker department would like to determine if their average number of clients seen per social worker is significantly greater than 40 cases. The correct statistical test to choose would be:
Chi-square test
Linear regression
One-sample t-test
ANOVA
3.)A bar owner wants to know if creating a signature drink for the establishment increases total revenue. They compared average revenue for each of its bartenders before the signature drink to 30 days after for each of the same bartenders. The correct statistical test to use is a:
Pearson Correlation
Chi-square test
paired-samples t-test
independent-samples t-test
4.)A pearson correlation coefficient r can be greater than 1.
True
False
Chai Tea-Test.
One-sample t-test
Paired-samples t-test
Independent-samples t-test
Explanation / Answer
1)Two departments indicate two independent samples we want to compare the mean of.Hence we use a Independent samples t-test.
2)We use the one sample t-test to test for mean
3)Since the subject remains the same and we have a before-after type data a paired samples t-test will be appropriate.
4)False.It is always between 1 and -1.
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