Question
Please show ALL work. Here isthedataset of people's scores on a measure of aptitude in research methods: 15, 22, 38, 25, 33, 18, 22, 20,
Please show ALL work. Here isthedataset of people's scores on a measure of aptitude in research methods:
15, 22, 38, 25, 33, 18, 22, 20, 35, 30, 31, 28, 19
In addition to these scores, researchers asked participantsif they had ever taken a research methods course before. Here is the dataset of scores broken down into two groups; those who have taken aresearch methods course and those who have not.
Have Taken Research Methods Course | Have NOT Taken Research Methods Course |
22 | 15 |
38 | 25 |
33 | 18 |
35 | 22 |
30 | 20 |
31 | 19 |
28 |
From these data, calculate the following:
Question 1: Determine an appropriate hypothesis and explain why you think the hypothesis is appropriate. State the null hypothesis.
Question 2: Calculate the mean and variance for each group.
Question 3: Calculate the t-score.
Question 4: Calculate the degrees of freedom.
Question 5: Would you use a one-tailed or two-tailed test? Why?
Question 6: Using a .05 significance level, find the t-value needed to reject the null hypothesis.
Question 7: What is your conclusion about your hypothesis?
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