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For a random sample of children from a school district

For a random sample of children from a school district in South Carolina, a regression analysis is conducted of y = amount spent on clothes in the past year (dollars) and x = year in school. MINITAB reports the tabulated results for observations at x = 12.

a. Interpret the value listed under “Fit.”

b. Interpret the interval listed under “95% CI.”

c. Interpret the interval listed under “95% PI.”

a. Interpret the value listed under “Fit.”

b. Interpret the interval listed under “95% CI.”

c. Interpret the interval listed under “95% PI.”

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