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Four laboratories were being used to perform chemical analyses. Samples of the same material were sent to the laboratories for analysis as part of the study to determine whether or not they give on the average the same results. The analytical results for the (four) laboratories were as follows:   Laboratory   A B C D 3.7 7.7 0.9 5.7 6.4 9.5 1.1 5.3 5.9 8.1 2.3 5.9 4.1 4.2 0.2 6.4 3.2 5.3 3.1 7.3   a) Can we conclude that the laboratories are equally effective? Use 0.05 level of significance b) Interpret your results

Four laboratories were being used to perform chemical analyses. Samples of the same material were sent to the laboratories for analysis as part of the study to determine whether or not they give on the average the same results. The analytical results for the (four) laboratories were as follows:   Laboratory   A B C D 3.7 7.7 0.9 5.7 6.4 9.5 1.1 5.3 5.9 8.1 2.3 5.9 4.1 4.2 0.2 6.4 3.2 5.3 3.1 7.3   a) Can we conclude that the laboratories are equally effective? Use 0.05 level of significance b) Interpret your results

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Four laboratories were being used to perform chemical analyses. Samples of the same material were sent to the laboratories for analysis as part of the study to determine whether or not they give on the average the same results. The analytical results for the (four)

laboratories were as follows:

 

Laboratory

 

A

B

C

D

3.7

7.7

0.9

5.7

6.4

9.5

1.1

5.3

5.9

8.1

2.3

5.9

4.1

4.2

0.2

6.4

3.2

5.3

3.1

7.3

 

a) Can we conclude that the laboratories are equally effective? Use 0.05 level of significance

b) Interpret your results

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