In: Statistics and Probability
Control |
5 mg |
10 mg |
50 |
51 |
60 |
48 |
51 |
58 |
46 |
49 |
57 |
51 |
53 |
61 |
53 |
52 |
61 |
47 |
46 |
64 |
Above are the results of a drug trial. The scores are given for subjects in three different conditions – a placebo control, 5 mg and 10 mg of the drug. Please run the appropriate test in SPSS using p-value or traditional hypothesis testing method and choose the alpha or p-value. If the results are statistically significant, please perform 2 post hoc tests of your choosing.
The hypothesis being tested is:
H0: µ1 = µ2 = µ3
Ha: Not all means are not equal
The SPSS output is:
The p-value is 0.000.
Since the p-value (0.000) is less than the significance level (0.05), we can reject the null hypothesis.
Therefore, we can conclude that the results are statistically significant.