In: Statistics and Probability
A | B | C |
8 |
24 | 19 |
12 | 16 | 28 |
22 | 22 | 24 |
15 | 14 | 31 |
18 | 20 | 19 |
9 | 32 |
Test at the 5% level of significance to see if the means are all the same.
1. What is the null and alternate hypotheses?
2. What is the p-value?
3. Decide if you reject or accept (fail to reject) your null hypothesis.
4. Decide if you reject or accept (fail to reject) your claim.
Group 1 | Group 2 | Group 3 | |
8 | 24 | 19 | |
12 | 16 | 28 | |
22 | 22 | 24 | |
15 | 14 | 31 | |
18 | 20 | 19 | |
9 | 32 | ||
Sum = | 84 | 96 | 153 |
Average = | 14 | 19.2 | 25.5 |
∑iXij2 | 1322 | 1912 | 4067 |
St. Dev. = | 5.404 | 4.147 | 5.753 |
SS = | 146 | 68.8 | 165.5 |
n = | 6 | 5 | 6 |