1)

X 230 265 358 480 530

Y 15.9 15.7 15.4 15.3 14.9

Calculate the Linear Correlation Coefficient r:

Using a significance level of = 0.05, determine if there is a linear correlation:

Determine the Regression Equation for the above data:

What is the mean of the y's (y-bar):

Predict how many car crashes there would be in a year if the weights of lemons imported from Mexico were 500:

2) "Speed Dating" statistics include "Likability" ratings of male dates made by the female dates. The summary statistics for these ratings are n = 199, = 6.10, and s = 1.99. Use a 0.01 significance level to test the claim that the population mean of such ratings is less than 7.00.