Homework Answers
| Values ( X ) | Σ ( Xi- X̅ )2 | |
| 23 | 2.0863 | |
| 26 | 19.7527 | |
| 21 | 0.3087 | |
| 19 | 6.5311 | |
| 16 | 30.8647 | |
| 22 | 0.1975 | |
| 23 | 2.0863 | |
| 19 | 6.5311 | |
| 25 | 11.8639 | |
| Total | 194 | 80.2223 |
Mean X̅ = Σ Xi / n
X̅ = 194 / 9 = 21.5556
Sample Standard deviation SX = √ ( (Xi - X̅
)2 / n - 1 )
SX = √ ( 80.2223 / 9 -1 ) = 3.1667
Test Statistic :-
χ2 = ( ( 9-1 ) * 10.028 ) / 10
χ2 = 8.02
Question 2
Test Statistic :-
f = 8.5 / 4
f = 2.13
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