# Question

The following information is obtained for a sample of 100 observations taken from a population.

SSxx = 524.884 se = 1.464, and ŷ = 5.48 + 2.50x

a. Make a 98% confidence interval for B.

b. Test at the 2.5% significance level whether B is positive.

c. Can you conclude that B is different from zero? Use α = .01.

d. Using a significance level of .01, test whether B is greater than 1.75.

SSxx = 524.884 se = 1.464, and ŷ = 5.48 + 2.50x

a. Make a 98% confidence interval for B.

b. Test at the 2.5% significance level whether B is positive.

c. Can you conclude that B is different from zero? Use α = .01.

d. Using a significance level of .01, test whether B is greater than 1.75.

## Answer to relevant Questions

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