Answer to Question #131465 in Statistics and Probability for Michael

Question

A researcher examined the relationship between weight (y axis) and height (x axis) among 475 male subjects. He graphed the relationship in the scatter diagram below. Weight is measured in pounds, and height in inches.

Graph: https://imgur.com/a/aINFHJx

The equation of the regression line is y = 3.86*x – 110.42. Is it reasonable to presume that if a male is 107 inches tall, his weight will be 302.6 pounds?

A. Yes
B. No

Answer 1

Here given

height = 107 inches

y -axis denote weight and x-axis denoted height in graph.

now , we can find according weight using regression line eqution.

y = 3.86*x – 110.42.

y = 3.86(107)-110.42

=413.02 - 110.42

y =302.6 pound.

ANSWER:

yes , it is reasonable to presume that if a male is 107 inches tall, his weight will be 302.6 pounds.