Question
Asked Feb 22, 2020
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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
11.23
11.27
2
14.36
14.41
3
8.33
8.35
4
10.50
10.52
23.42
23.41
9.15
9.17
13.47
13.52
8
6.47
6.46
12.40
12.45
10
19.38
19.35
Can you conclude that the mean weight on scale 2 is greater than the mean weight on scale
1?
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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 11.23 11.27 2 14.36 14.41 3 8.33 8.35 4 10.50 10.52 23.42 23.41 9.15 9.17 13.47 13.52 8 6.47 6.46 12.40 12.45 10 19.38 19.35 Can you conclude that the mean weight on scale 2 is greater than the mean weight on scale 1?

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Expert Answer

Step 1

State the test hypotheses.

Statistics homework question answer, step 1, image 1

Step 2

The following table shows the necessary calculations for finding the test statistic:

Statistics homework question answer, step 2, image 1

Step 3

Statistics homework question answer, step 3, image 1

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