magiflores281 magiflores281

25-10-2022
Mathematics

Answered

air quality measurements were collected in a random sample of 25 country capitals in 2013, and then again in the same cities in 2014. we would like to use these data to compare average air quality between the two years. should we use a paired or unpaired test? explain your reasoning.

Answer :

fahiskt9087 fahiskt9087

03-11-2022

Use of the two-tailed test is advised. In order to compare the average across two years,

Given that,

A random sample of 25 national capitals had their air quality measured in 2013, and the same cities had been visited again in 2014. We want to compare the average air quality between the two years using this data.

To find :

A one-sided or two-sided test should be used, right? Describe your thinking.

The two-tailed test should be used. We want to contrast the average across two years. If the test parameter calculated for the two years differs, it would be interesting to know. (There is no exact comparison to show if one year is better or worse than the other.)

To learn more about test parameter click here:

brainly.com/question/13978790

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