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A professor wants to determine if there is a difference between students' pre and post test...

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Question

Advance Math

A professor wants to determine if there is a difference betweenstudents' pre and post test after a semester of learning.

1. What could be the research question for this problem?

2. What could be the null hypothesis and alternative hypothesisfor this problem?

3. Looking at the mean of both pro and post test, on theend-results below, does it REJECT or FAIL TO REJECT the nullhypothesis and why?

The results of the test showed this following:

Paired SamplesStatistics

Mean

N

Std. Deviation

Std. Error Mean

Pair 1

PreTest

65.0000

33

15.18223

2.64289

PostTest

71.4545

33

14.59686

2.54099

Paired SamplesCorrelations

N

Correlation

Sig.

Pair 1

PreTest &PostTest

33

.969

.000

Paired SamplesTest

Paired Differences

t

df

Sig. (2-tailed)

Mean

Std. Deviation

Std. Error Mean

95% ConfidenceInterval of the Difference

Lower

Upper

Pair 1

PreTest - PostTest

-6.45455

3.73406

.65002

-7.77858

-5.13051

-9.930

32

.000

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