Question

In: Statistics and Probability

In a laboratory containing polarographic equipment, six samples of dust were taken at various distances from...

  1. In a laboratory containing polarographic equipment, six samples of dust were taken at various distances from the polarograph and the mercury content of each sample was determined. The following results were obtained.

Distance from the Polarograph, m

1.4

3.8

7.5

10.2

11.7

15.0

Mercury concentration, ng g-1

2.4

2.5

1.3

1.3

0.7

1.2

       

Examine the possibility that the mercury arose from the polarograph.

Solutions

Expert Solution

I had done this using MINITAB as follows-

stat - basic Statistics - 2 sample t test

Here, we have to test,

H0: mu1 -mu2=0 Vs mu1-mu2 <0It gives output as follows-

From above P-value is greater than l.o.s. Thus, reject H0. Hence there is possibility that mercury arose from polarograph.

orchestra answered 3 years ago
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