12.11 t-score? A regression analysis is conducted with 32 observations. a. What is the df value for...

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12.11 t-score? A regression analysis is conducted with 32 observations.

a. What is the df value for inference about the slope b?

b. Which two t test statistic values would give a P-value of 0.10 for testing H0: b = 0 against Ha: b • 0?

c. What is the value of the t-score that you multiply the standard error with to find the margin of error for a 90% confidence interval for b?

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