The following information is given concerning the ACT scores of high school seniors from two local schools.

School A
School B
n1 = 15
n2 = 15
 = 25
 = 23
 = 16
 = 10
?
Develop a 98% confidence interval estimate for the difference between the two population means. Assume the two populations are normally distributed.

What will be an ideal response?


-1.068 to 5.068

Business

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