(Answered) 1 the formula for a regression equation is y 2x 9a what

Statistics

1. The formula for a regression equation is Y' = 2X + 9.

a. What would be the predicted score for a person scoring 6 on X?

b. If someone's predicted score was 14, what was this person's score on X?

2. For the (X,Y) data points below, compute:

Data Points: (4,6), (3,7), (5,12), (11,17), (10,9), (14,21)

a. The correlation (r) and determine if it is significantly different from a hypothesized slope of 0 (null hypothesis).

HINT: Use the significance test for correlation on Page - 482 and assume a 95% confidence.

b. The slope and intercept of the linear regression line

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