(Solution) - A regression analysis is conducted with 25 observations a What is -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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A regression analysis is conducted with 25 observations.
a. What is the df value for inference about the slope ??
b. Which two t test statistic values would give a P-value of 0.05 for testing H0: ? = 0 against Ha: ? ? 0?
c. Which t -score would you multiply the standard error by in order to find the margin of error for a 95% confidence interval for ??