Question: Comparing scales : In an experiment to determine whether there is a systematic difference between the weights obtained with two different scales, 10 rock specimens

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 12.02 12.28
2 15.51 15.71
3 9.00 8.93
4 11.34 11.26
5 25.29 25.75
6 9.79 10.09
7 14.41 14.87
8 7.05 7.11
9 13.52 13.70
10 21.12 20.70

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Let

1

represent the mean weight on Scale 1 and d= 1- 2

. Can you conclude that the the mean weight differs between the Scales? Use the = 0.05

level of significance and the TI-84 Plus calculator to answer the following.

Part 1 of 4

(a) State the null and alternate hypotheses.

H0:

H1 :

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