Question: Jrgen predicts that regular exercise has a positive effect on children's academic performance. He hypothesizes that children who play outside 3+ hours a day will

Jrgen predicts that regular exercise has a positive effect on children's academic performance. He hypothesizes that children who play outside 3+ hours a day will have higher grade point averages than children who exercise less or not at all. The general population of children has a mean GPA of 2.71 ( = 0.84). Jrgen records the GPA of 34 students who exercise regularly; their mean GPA is 2.97. Separate from his experiment, in the real world, exercise does have a positive effect on children's academic performance. Calculate the z test using = .05 (show your work!), reject / do not reject H0, and indicate whether Jrgen committed a Type I error, a Type II error, correctly rejected H0, or correctly did not reject H0

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!