A large suburban school district is contemplating instituting a special program to combat overweight in elementary school boys. In order to determine whether such a program is warranted, a random sample of 36 fourth-grade boys is selected. Then, for each boy the difference between his actual weight and the weight recommended for his height and age is recorded. A positive difference indicates overweight and a negative difference, underweight. The following results are obtained (in pounds):

(a) Set up

and

.
(b)Perform the statistical test ( (c)Draw final conclusions.

Question

A large suburban school district is contemplating instituting a special program to combat overweight in elementary school boys. In order to determine whether such a program is warranted, a random sample of 36 fourth-grade boys is selected. Then, for each boy the difference between his actual weight and the weight recommended for his height and age is recorded. A positive difference indicates overweight and a negative difference, underweight. The following results are obtained (in pounds):

(a) Set up

and

.
(b)Perform the statistical test (

(c)Draw final conclusions.

(a) Set up 
  
 and 
 
  .
(b)Perform the statistical test (  (c)Draw final conclusions.

Quizplus · Accepted Answer

The Answer of A large suburban school district is contemplating instituting a special program to combat overweight in elementary school boys. In order to determine whether such a program is warranted, a random sample of 36 fourth-grade boys is selected. Then, for each boy the difference between his actual weight and the weight recommended for his height and age is recorded. A positive difference indicates overweight and a negative difference, underweight. The following results are obtained (in pounds):

(a) Set up 
  
 and 
 
  .
(b)Perform the statistical test (  (c)Draw final conclusions.

A Large Suburban School District Is Contemplating Instituting a Special