According to a factory employer, the mean working time of workers in the factory is 6 hours with a standard deviation of 0.5 hours. A researcher interviewed 50% of the employees and found out that their mean working time is 8 hours with a standard deviation of 1 hour. The a level is 0.05.
In symbols?
a)
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
"H_o:\\mu= 6"
"H_a:\\mu\\neq 6"
Note that these hypotheses constitute a two-tailed test.
For this analysis, the significance level is 0.05. The test method is a one-sample t-test.
b)
State the hypotheses. The first step is to state the null hypothesis and an alternative hypothesis.
Null hypothesis: The mean working time for the workers in the factory is 6 hours.
Alternative hypothesis: The mean working time for the workers in the factory is not 6 hours.
Note that these hypotheses constitute a two-tailed test.
For this analysis, the significance level is 0.05. The test method is a one-sample t-test.
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