An educational psychologist is interested in knowing whether the experience of attending preschool is related

ADvance statistics and quality improvement

A company of cell phones want to know if the age Is affecting the number of minute used per day. Using and alpha of 5% determine is the humidity affects the rate of production?

Minutes	Kids	Adolescent	Adult	Over 60
	20	200	90	30
	30	399	120	50
	40	300	200	30
	50	397	130	40