Was this a one tail or two tail significance tests

Assignment Help Basic Statistics

Reference no: EM131037531

T Tests-

1. Calculate a t-test for the following:

Pre-test scores	Post-test scores
10	50
10	60
20	70
20	70
30	80
10	60
40	90
40	90
50	100
10	60
20	70
40	100
30	80
20	70
30	90

2. You are interested in investigating the change in students' communication competency scores from your pretest to your posttest. Write the hypothesized relationship:

a. Null Hypothesis:

b. Alternative Hypothesis:

3. Was this a one tail or two tail significance tests? Explain.

4. To what extent are the pre and post test means scores statistically significant?

Reference no: EM131037531

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