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MBA, PHD
Phoniex
Jul-2007 - Jun-2012
Corportae Manager
ChevronTexaco Corporation
Feb-2009 - Nov-2016
Question description
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Hypothesis Testing presents a sample of the number of defective flash drives produced by a small manufacturing company over the last 30 weeks. The company’s operations manager believes that the number of defects produced by the process is less than seven defective flash drives per week.
Your hypothesis test should include null and alternative hypotheses, a t test statistic value, a p-value, a decision, and a conclusion.
|
t-Test: Two-Sample Assuming Unequal Variances |
||
| Â | Â | Â |
| Â |
#Flashdrives |
Week |
|
Mean |
7.033333333 |
15.5 |
|
Variance |
1.895402299 |
77.5 |
|
Observations |
30 |
30 |
|
Hypothesized Mean Difference |
0 |
 |
|
df |
30 |
 |
|
t Stat |
-5.204456853 |
 |
|
P(T<=t) one-tail |
6.53853E-06 |
 |
|
t Critical one-tail |
1.697260887 |
 |
|
P(T<=t) two-tail |
1.30771E-05 |
 |
|
t Critical two-tail |
2.042272456 |
 |
| Â | Â | Â |
Submit a (1) page Word document that includes the hypothesis test. Specifically, the following critical elements must be addressed:
1. Methodology
2. Analysis
3. Conclusion
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