Question: The image below shows the SPSS output table for the Kruskal-Wallis H test for the time (in minutes) that participants stayed on task while studying

The image below shows the SPSS output table for the Kruskal-Wallis H test for the time (in minutes) that participants stayed on task while studying with a friend (times:

25, 26, 28, 21, 14, 18, 22, 20, 18, 24), with a stranger (times: 25, 34, 35, 28, 20, 36, 18, 22, 35, 27), or alone (times: 28, 26, 25, 32, 25, 36, 30, 28, 35, 29). [Please feel free to enter these data in SPSS and follow the directions given in Section 18.9 to reproduce the SPSS output table shown.] Based on the data summarized in the table, which of the following statements is true?

Test Statistics a,b CellPhone Kruskal-Wallis H 10.020 df 2 Asymp. Sig. .007

a. The value of the test statistic, H, is 10.020.

b. The decision is to reject the null hypothesis, p = .007.

c. Both a and b are true.

Test Statistics a,b CellPhone Kruskal-Wallis H 10.020 df 2 Asymp. Sig. .007 a. Kruskal Wallis Test

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