Question

For Questions 1 and include all eight Steps of Hypothesis Testing. Use the p-value from SPSS to determine whether to reject the null hypothesis. For each question the SPSS output in Step 5, but don't forget to write the appropriate values down in your written Step 6 and annotate your output so that we know where you got the values .

An investigator wishes to compare the effects of two different training methods on the performance of a particular task. He recruits 16 participants and randomly assigns them to Training Method 1 or Training Method 2. Assume that the following results are obtained , where higher scores indicate better performance.

Training Method Performance

Method 1: 7,8,10,14,12,13,15,16

Method 2: 5,3,12,10,11,10,12,12

Conduct the appropriate statistical test using alpha=.05. Turn in your raw data file, your written steps, and the SPSS analysis.

Answer 1

The SPSS output is:

The hypothesis being tested is:

H0: µ1 = µ2

H1: µ1 ≠ µ2

The p-value is 0.160.

Since the p-value (0.160) is greater than the significance level (0.05), we cannot reject the null hypothesis.

Therefore, we cannot conclude that the better effects of two different training methods on the performance of a particular task.