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In: Statistics and Probability

The data below shows the observed pollution indexes of air samples that are randomly chosen in...

The data below shows the observed pollution indexes of air samples that are randomly chosen in two areas of a city. The pollution indexes of air are said to be normally distributed from both areas. Use a 95% confidence interval to determine if the mean pollution indexes of air are different for the two areas.

Area A

Area B

2.92

4.69             

1.84   

3.44

1.88

4.86            

0.95   

3.69

5.35   

5.81             

4.26     

4.95

3.81     

5.55             

3.18   

4.47

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orchestra answered 2 years ago
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