Determine the critical value

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The table below shows a sample of waiting times? (in days) for a heart transplant for two age groups. At (alpha) α =? 0.05, can you conclude that the variances of the waiting times differ between the two age? groups?

      18-34                               35-49

156, 172, 169, 168, 165.          215, 192, 208, 205, 199, 213, 199.

?(a) Determine the hypotheses. Let σ2/1 be the variance for the? 18-34 group and let σ2/2 be the variance for the? 35-49 group.

(b) Determine the critical value. Calculate the degrees of freedom.

(c) Compute the F test statistic.

(d) Reach a decision.

Reference no: EM132195666

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