Question: Independent random samples from two normal populations produced the given variances: Sample Size Sample Variance 13 18.3 13 7.9 a. Do the data provide sufficient

Independent random samples from two normal populations produced the given variances:

Sample Size Sample Variance

13 18.3

13 7.9

a. Do the data provide sufficient evidence to indicate that ????12>????22 ? Test using = 0.05.

b. Find the approximate p-value for the test and interpret its value.

c. Construct a 95% confidence interval for the variance ratio. Interpret the interval.

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