statistics

17. A newspaper article reported that the typical American family spent an average of $75 for
Easter candy last year. A sample of N=16 families this year reported spending a mean of
$85, with a standard deviation of $20. What hypothesis testing technique should be used to
determine whether there has been a significant change in holiday spending?
a. t-test for two independent samples
b. t-test for matched pairs
c. z-test for population mean
d. t-test for population mean

asked by Matt
  1. How about d? You have only one sample with a small sample size.

    posted by MathGuru

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