A newspaper article reported that the typical American family spent an average of $81 for Halloween candy and costumes last year.A sample of N = 16 families this year reported spending a mean of M = $85, with s = $20.What statistical test would be used to determine whether these data indicate a significant change in holiday spending?

Question

Quizplus · Accepted Answer

A single-sample t-test is appropriate for comparing the sample mean ($85) to a known population mean ($81) when the population standard deviation is unknown and the sample size is relatively small (N = 16).

A Newspaper Article Reported That the Typical American Family Spent