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mcadoo774
mcadoo774
20.03.2020 • 
Mathematics

Comparing scales: In an experiment to determine whether there is a systematic difference between the weights obtained with two different scales, 10 rock specimens were weighed, in grams, on each scale. The following data were obtained:

Specimen Weight on Scale 1 Weight on Scale 2
1

12.35

12.51

2

15.08

14.99

3

9.00

9.10

4

11.55

11.47

5

24.36

24.35

6

9.88

10.00

7

15.36

15.55

8

7.05

7.04

9

13.39

13.57

Let μ1 represent the mean weight on Scale 1 and ud= μ1-μ2

Can you conclude that the mean weight on Scale 1 is less than the mean weight on Scale 2?

Use the a=0.10 level of significance.

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