The average number of air conditioners sold in 2015 was


Sale of Air Conditioners

The average number of air conditioners sold in 2015 was 3600 per day in a city, and that was larger than the average for any other appliance.

Suppose the standard deviation is 1404 and the distribution is right-skewed. Suppose we take a random sample of 81 days in the year.

a. What value should we expect for the sample mean? Why?

b. What is the standard error for the sample mean?

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Basic Statistics: The average number of air conditioners sold in 2015 was
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