LearnViaWeb.com:
Learning online has never been so great.
If you wish to donate to help support LearnViaWeb.com click on the donate button.
Search within my site for ...
Assume that widgets are produced with a normal distribution.
You have two machines that produce widgets for your company.
The machines that produce widgets have a different standard deviation, and:
It is believed that widgets from machine 1 have a mean greater than that of machine 2
Sample from Machine 1 (data points separated by commas):
62.56 , 67.37 , 65.93
Machine 1 has sample mean: 65.287 and the sample standard deviation is: 2.469.
Sample From Machine 2 (data points separated by commas):
59.56 , 57.32 , 61.4 , 57.44 ,
57.98 , 59.65 , 57.32
Machine 2 has sample mean: 58.667 and the sample standard deviation is: 1.573.
Test your hypothesis at the 0.05 level.
You can download required data if you wish
Enter your answer below (4 decimal places).
P-value:
Select Answer:
Fail to Reject Null Hypothesis
Reject Null Hypothesis
