Can someone help me by answering #2 of these questions.
2)
New | Old | Difference(d) |
13.3 | 14 | -0.7 |
14.9 | 10.1 | 4.8 |
13.9 | 8.7 | 5.2 |
6.4 | 17.9 | -11.5 |
11.1 | 10.7 | 0.4 |
7.3 | 12.8 | -5.5 |
8.9 | 15 | -6.1 |
12.9 | 15 | -2.1 |
7.9 | 18.3 | -10.4 |
11.5 | 15.4 | -3.9 |
Total | -29.8 |
a)
Claim: The new machine faster than the old machine.
The null and alternative hypothesis is
b)
Level of significance = 0.05
Degrees of freedom = n - 1 = 10 - 1 = 9
Critical value = 1.833 ( Using t table)
c)
Sample size = n = 10
Sample mean of difference = = - 2.98
Sample standard deviation of difference = = 5.6707
Test statistic is
d)
Test statistic | t | < critical value we fail to reject the null hypothesis.
e)
Conclusion:
The new machine NOT faster than the old machine.
Can someone help me by answering #2 of these questions. Using the techniques described in sections 10.2 and 10.3 of the text, for each of these hypothesis testing problems, (a) state the null and alte...