We collect data from a random sample of 15 high school students to investigate the relationship between foot length (in centimeters) and height (in centimeters). The mean and standard deviation of the foot lengths are x = 24.76 and sx = 2.71. The mean and standard deviation of the heights are y = 171.43 and sy = 10.69. The correlation between foot length and height is r = 0.697. Find the equation of the least-squares regression line for predicting height from foot length.
Added by Nicole W.
Step 1
Mean of foot lengths (x̄) = 24.76 cm Standard deviation of foot lengths (s_x) = 2.71 cm Mean of heights (ȳ) = 171.43 cm Standard deviation of heights (s_y) = 10.69 cm Correlation coefficient (r) = 0.697 Show more…
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