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Finding the value of test statistic using the chi–square test.

9 randomly selected statistics quiz scores are listed below. Use a .10 level of significance to test the claim that the variance of all scores in the population is more than 9.

15
18
10
19
11
12
15
17
15

Give the null and alternative hypotheses.
Give the critical value(s).

Attached file(s)

Solution Attachment

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