Solution-What confidence intervals from table should be

What confidence intervals from table should be used to

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Two methods of memorizing difficult material are being tested to determine if one method produces better retention. Nine pairs of students are included in the study. Each student in the pair has been matched according to IQ and academic background and then randomly assigned to use one of the two methods: Method A or Method B. A memorization test is given to all the students where the final score can range from 0 to 100 points.

Table: Memorization Methods

Sample	95% C.I. for Population Mean Score on Memorization Test
Method A	(50 to 74) points
Method B	(45 to 73) points
Difference = (Method A - Method B)	(1 to 5) points

a. The two samples are which of the following: two independent or matched pairs? Explain.

b. What type of study is found-observational or randomized experiment? Explain.

c. What is the experimental (or observational) unit?

d. What is the response variable?

e. What is the explanatory variable?

f. What confidence interval(s) from Table should be used to compare the memorization score for the two methods? Explain.

g. Using your answer in the previous part as your basis, state an appropriate conclusion in terms of the problem.

Reference no: EM13575723

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What confidence intervals from table should be used to

Reference no: EM13575723

Reference no: EM13575723

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