American households spent an average of about $68 in 2007 on halloween merchandise such as costumes, decorations and candy. to see if this number had changed, researchers conducted a new survey in 2008 before industry numbers were reported. the survey included 1,500 households and found that average halloween spending was $58 per household.
the sample mean is dollars, while the claimed population mean is dollars.

The sample mean is $58 and population mean is $68.

Explanation:

Since, They do a survey on only 1500 households and use only this information to get mean. So, Sample Mean is $58 whereas Population Mean is $68.

When we get information using all possible units, Then it is Population.

The sample is a subset of the population. We take samples because it is easy to analyze samples as compared to population and it is less time taken.

answer decisions made by individual households and firms;

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