One hundred blood samples were taken from 100 individuals. All of the blood samples were run...

One hundred blood samples were taken from 100 individuals. All of the blood samples were run through two machines to determine if the machines were testing samples appropriately. We expect that both machines should yield similar results. Below are the results of the analysis. Assume there are 100 sample and they are normal. Are the two machines similar? Should we check into whether one machine should be replaced? Show all of your work.

Beckman Machine	Coulter Machine
3.	4.
5.	6.
7.	8.
9.	10.
11.	12.
13.	14.
15.	16.

Solutions

Expert Solution

We use two sample t test. The samples are normally distributed. A two sample t test is used to determineif the means of two groups differ significantly. Here two groups are two machines.

We use minitab to solve the problem.

Steps : stat, basic statistics, two sample-t test.

conclusion : as p-value =0.673 >0.05 we accept the null hypothesis and conclude there is no significant difference in the mean i.e both machines produce similar results. So, no machine should be replaced.

milcah answered 9 months ago

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