Suppose it took 12 riders a total of 11 days 21 hours to ride from St.joseph to Sacremento. If they all rode the same number of
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Answer:
There is sufficient evidence to conclude that women make less money than men doing the same job.
Step-by-step explanation:
The hypothesis for the test can be explained as follows:
<em>H</em>₀: Women does not make less money than men doing the same job, i.e. .
<em>Hₐ</em>: Women make less money than men doing the same job, i.e. .
From the provided data compute the sample mean and standard deviation:
Compute the test statistic as follows:
The test statistic value is -3.143.
Compute the <em>p</em>-value as follows:
*Use a <em>t</em>-table.
The <em>p</em>-value of the test is 0.003.
The p-value of the test is very small for all the commonly used significance level. The null hypothesis will be rejected.
Conclusion:
There is sufficient evidence to conclude that women make less money than men doing the same job.