answer the two questions relating to demand and the law of demand. a. which can cause a shift in the demand curve? a change in t
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Error in true mean = +/-Z*
Where; Z=2.58 at 99% confidence interval, s= sd = 0.25 hours, n=sample population = 60 refrigerators
Therefore;
Margin of error = +/-2.58*
= 0.0832 hours
Where; Z=2.58 at 99% confidence interval, s= sd = 0.25 hours, n=sample population = 60 refrigerators
Therefore;
Margin of error = +/-2.58*