Question: please perfect answer.... A claim is made that there is no correlation between battery life and screen size in smart phones. A sample of 11

please perfect answer....

A claim is made that there is no correlation between battery life and screen size in smart phones. A sample of 11 models of smart phones were ranked according to their battery life and their screen size. These ranks are given in the table below. Model Battery Life | Screen size A 5 4 B w 10 C 6 9 D 10 1 E 4 11 2 G 5 H 6 2 8 9 3 K 11 7 Round your answers to 3 places after the decimal point, if necessary. (a) Find the value of the (Spearman's) rank correlation coefficient test statistic. Test statistic: Is = (b) Find the critical values of (Spearman's) rank correlation coefficient if this test is conducted at the 0.01 significance level. Do not type " + "in front of your answer (the : is already given in front of the answer box below). Critical values: Is =

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