A prior study examined the correlation between the number of times per day teenage girls look at themselves in the mirror and those girls’ level of self-esteem. The correlation was +0.612. The means and standard deviations necessary for prediction are as follows:

a. What is the equation for predicting mirror looks (Y) from self-esteem (X) for this group of teenage girls?

b. What is the expected number of mirror looks for a teenage girl whose level of selfesteem is 4?

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Self-Esteem (X) Mx = 5.80 $x = 1.821 (using/n - 1) Mirror Looks (Y) M₁ = 3.333 s = 1.988 (using/n - 1)