Question $7$

A study was conducted on the relationship between the speed of different cars and their gasoline mileage. The correlation coefficient was found to be $0\mathrm{.}35$ from the

study. Later, it was discovered that there was a defect in the speedometers and they had all been set $5$ miles per hour too fast. The correlation coefficient was

computed using the correct scores. What is the new correlation coefficient?

$0\mathrm{.}30$

$0\mathrm{.}45$

$0\mathrm{.}40$

$0\mathrm{.}35$

Question $8$

An essential technique in making training programs effective is to

feed back to the employee meaningful measures of his performance.

set group goals.

have training classes which teach skills and knowledge required.

post results of performance before and after the training program.