Question 3 SS = 340.700, s, 1.951,9 = 12.45 + 6.32x The information above is obtained from a sample of 16 observations taken from a population. Answer the following questions. a) Find the 99% confidence interval for B. b) Can you conclude that B is positive? Use a significance level of 0.025. c) Is B different from zero. Use a significance level of 0.01. d) By using a significance level of 0.02, test whether B is different from 4.50.

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A: The sample observations are: 10, 9, 12, 14, 13, 11, 6, 5.The sample observations, n=8.