Available below are amounts of arsenic in samples of brown rice from three different regions. The amounts are in micrograms of arsenic and all samples have the same serving size. Use a 0.05significance level to test the claim that the three samples are from populations with the same mean. Do the amounts of arsenic appear to be different in the different​ regions? Given that the amounts of arsenic in the samples from region A have the highest​ mean, can we conclude that brown rice from region A poses the greatest health​ problem?     Arsenic Amounts (micrograms)                             A 5.8 5.8 6.5 6.5 6.9 7.2 7.3 7.3 7.6 7.6 7.9 7.9   B 4.5 4.9 5.2 5.2 5.5 5.8 5.8 5.9 6.3 6.3 6.4 6.4   C 1.8 3.7 4.1 4.1 4.6 4.6 4.8 5.1 5.2 5.6 5.7 5.7

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Available below are amounts of arsenic in samples of brown rice from three different regions. The amounts are in micrograms of arsenic and all samples have the same serving size. Use a 0.05significance level to test the claim that the three samples are from populations with the same mean. Do the amounts of arsenic appear to be different in the different​ regions? Given that the amounts of arsenic in the samples from region A
have the highest​ mean, can we conclude that brown rice from region
A poses the greatest health​ problem?
 
 
Arsenic Amounts (micrograms)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A
5.8
5.8
6.5
6.5
6.9
7.2
7.3
7.3
7.6
7.6
7.9
7.9
 
B
4.5
4.9
5.2
5.2
5.5
5.8
5.8
5.9
6.3
6.3
6.4
6.4
 
C
1.8
3.7
4.1
4.1
4.6
4.6
4.8
5.1
5.2
5.6
5.7
5.7
 
 
The Test statistic is:
 
The P-value is:
 
The conclusion is:
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