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If you take this sample and break into 2 samples, one for graduate degrees (MBA and...

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Question

Statistics

If you take this sample and break into 2 samples, one forgraduate degrees (MBA and MSE) and one for undergraduate degrees(BA and BSE), would you believe the populations have differentGPAs?

3.56

MBA

3.51

BA

3.75

MBA

2.85

BA

3.2

MBA

2.94

BA

3.2

MBA

3.25

BA

3.87

MSE

2.65

BSE

3.2

MSE

3.47

BSE

                                             3.46

Mean (Grad)

                 3.11

Mean (Undergrad)

                             0.28

std dev.

              0.32

std dev.

  1. What test would you perform?
    1. Z-test of a mean
    2. T-test of a mean
    3. T-test of 2 sample means
    4. Chi-square test
  2. What is the value of the test statistic?
    1. 2.02
    2. 2.68
    3. 3.06
    4. 3.11
  3. What is the p-value?
    1. 0.0074
    2. 0.0280
    3. 0.0373
    4. 0.0746
  4. Based on a significance level of 0.05, would you reject or failto reject and why?
    1. Reject because p < alpha
    2. Reject because p > alpha
    3. Fail to reject because p < alpha
    4. Fail to reject because p > alpha

Answer & Explanation Solved by verified expert
4.2 Ratings (643 Votes)
aQuestionWhat test would you perform Correct optionTtest of 2 sample meansbWhat is the value of the test statisticCorrect    See Answer
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