Two methods of memorizing difficult material are being tested. Ten students are available. After training, they are given a memory test and the number of mistakes recorded.
(a) How would assign five students to each of the methods.?
(b) The data on the number of mistakes are

Ignoring lack of normality, obtain a 95 % confidence interval for the difference of mean number of mistakes.

(c) Is the true difference of population means contained in your interval in Part b? Explain.
(d) Explain why you are 95 % confident about your interval in part b covering the difference of population means.

Question

Two methods of memorizing difficult material are being tested. Ten students are available. After training, they are given a memory test and the number of mistakes recorded.
(a) How would assign five students to each of the methods.?
(b) The data on the number of mistakes are
 
Ignoring lack of normality, obtain a 95 % confidence interval for the difference of mean number of mistakes.

(c) Is the true difference of population means contained in your interval in Part b? Explain.
(d) Explain why you are 95 % confident about your interval in part b covering the difference of population means.

Quizplus · Accepted Answer

The Answer of Two methods of memorizing difficult material are being tested. Ten students are available. After training, they are given a memory test and the number of mistakes recorded.
(a) How would assign five students to each of the methods.?
(b) The data on the number of mistakes are
 
Ignoring lack of normality, obtain a 95 % confidence interval for the difference of mean number of mistakes.

(c) Is the true difference of population means contained in your interval in Part b? Explain.
(d) Explain why you are 95 % confident about your interval in part b covering the difference of population means.

Two Methods of Memorizing Difficult Material Are Being Tested