Please write properly QUESTION 5 (10 MARKS) Six samples each of three different brands of paint were tested and the drying time of the paint is recorded. The following data (in minute) resulted. Brand A B C Drying time 31 34 35 33 32 36 37 37 36 35 40 28 32 29 34 33 35 30 i. Estimate the variability due to types of brand of drying time and the overall variability of the data. (4 marks) ii. Is there a significant difference in the drying time due to different brands? Use a = 0.05 significance level. (6 marks)
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