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1. An instructor would like to examine the effect of using handouts during lecture on student’s...

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Basic Math

1. An instructor would like to examine the effect of usinghandouts during lecture on student’s grades. Usually no handoutsare used and the mean final grade in the class is μ = 80. Thissemester, the instructor uses handouts during lecture and the meanfinal grade in the class of n = 41 students is M = 82.5 with astandard deviation of s = 6.

a. Is there sufficient evidence to conclude that handoutssignificantly (α = .01) change overall grades? If so, compute theeffect size (r2) and explain what it tells you about thedifferences in grades due to handouts.

1.

2.

3.

4.

b. Is there sufficient evidence to conclude that handoutssignificantly (α = .01) improve overall grades? (Hint: Step 3 willbe the same as part a.)? If so, compute the effect size(r2) and explain what it tells you about the differencesin grades due to handouts.

1.

2.

3.

4.

Answer & Explanation Solved by verified expert
4.2 Ratings (739 Votes)
aConclusion There is not sufficient evidence    See Answer
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