Concept explainers
To check: Whether sufficient evidences are provided by the data set that polyester decays more in 16 weeks in comparison of 2 weeks.
Answer to Problem 2.1CYU
No, enough evidences are not provided by the data set that polyester decays more in 16 weeks in comparison of 2 weeks
Explanation of Solution
Given:
The data set is:
Group 1 | Group 2 |
118 | 124 |
126 | 98 |
126 | 110 |
120 | 140 |
129 | 110 |
Calculation:
The null and alternative hypotheses are:
The obtained output, using Ti-83 plus calculator is:
Assume, significance level to be 0.05.
Here, p-value (0.989) > significance level
At 5% significance level, there are insufficient evidence to conclude that polyester decays more in 16 weeks in comparison of 2 weeks.
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