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.”
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