What is the standard error for the sample mean

Reference no: EM131796341

Sale of Microwaves

The average number of microwaves sold in 2015 was 2700 per day in the same city, and that was larger than the average for any other appliance but less than that of the air conditioners.

Suppose the standard deviation is 1551 and the distribution is right-skewed.

Suppose we take a random sample of 121 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?

Reference no: EM131796341

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