6.1) The following data were obtained: Policy A Policy B n2 = 15 ni = 10 x = R12 663 X = R9926 S1 = R664 S2 = R6044 6.1.

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6 1 The Following Data Were Obtained Policy A Policy B N2 15 Ni 10 X R12 663 X R9926 S1 R664 S2 R6044 6 1 1 (99.06 KiB) Viewed 30 times

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6.1) The following data were obtained: Policy A Policy B n2 = 15 ni = 10 x = R12 663 X = R9926 S1 = R664 S2 = R6044 6.1.1) Test the claim that the mean cost of policy A is equal to the mean cost of policy B. assume a 0.05 significance level. Assume Sı2 = 52?, but in practice this is tested with an F-test. (5) 6.2) Predict the final exam scores from scores made by students in a statistics class in the mid-term and final examination given in the table3 below. 6.2.1) Develop a regression equation which may be used to predict final examination scores from the mid-term score (5) [Turn-Over] 5 IES2601 Mid- Student Final Term 1 98 90 2 66 74 3 100 98 4 96 88 5 88 80 6 45 62 7 76 78 8 60 74 9 74 86 10 82 80 Table 3: Statistics student scores 4 [10]