Table 8.16 shows the average weight (in pounds) for 18- to 24-year-old U.S. women of different heights

Question:

Table 8.16 shows the average weight (in pounds) for 18- to 24-year-old U.S. women of different heights (measured in inches above 5 feet). Use least squares to estimate the relationship between height (X) and weight (Y).

a. Interpret the estimated coefficient of X.

b. Calculate a 95 percent confidence interval for the coefficient of X.

c. Is the relationship statistically significant at the 5 percent level?

d. The American Heart Association says that the ideal female weight is 100 + 5.0X.

How does your fitted line compare to this guideline?image text in transcribed

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