The variable is the X variable from which Y scores are pred

The _______________ variable is the X variable from which Y scores are predicted.

A regression predicts the weight from height with the following equation: Y = 1.5X + 25. If the standard error of the estimate (standard deviation of a regression) is 12 lbs, calculate the range of weights in which we would expect 95% of the population with a height of 68 inches. (Assume that the value of z with 2.5% of the population remaining in the tail is 1.96)

Solution

If the correlation between height and weight is 0.7, we know that increased height causes increased weight. TRUE/FALSE?

True

A regression predicts the weight from height with the following equation: Y = 1.5X + 11. Predict the weight of someone 66 inches tall and predict the weight of someone 72 inches tall.

Y = 1.5X + 11
When Weight is 66 => Y = 1.5(66)+11 = 110
When Weight is 72 => Y = 1.5(72)+11 = 119

In a regression with a single predictor, the standardized regression coefficient is equal to r. TRUE/FALSE?

False