Question

*******I am studying for an upcoming test and I am having trouble with QUESTION B) where I need to find the sample variances for the two cooperatives (BT) and (PA) I would like to see how you end up with 135.14 and 749.70? I am confused about the capital E symbol and why it is used when finding cooperative?

8.80 Lobster trap placement. Given trap spacings among two lobster fishing crews: BT cooperative has spacings = {93, 99, 105, 94, 82, 70, 86} PA cooperative has spacings = {118, 94, 106, 72, 90, 66, 153, 98} a) Set up null and alternative hypotheses for testing the equality of variances b) Find the sample variances for the two cooperatives. c) Compute the test statistic. d) Find the approximate p-value of the test. e) Make a conclusion if ? = .01

Answer 1