What is the average expenditure of a Hispanic customer on chips per year? Suppose it is hypothesized that the figure is $45 per year. A researcher who knows the Hispanic market believes that this figure is too high and wants to prove her case. She randomly selects 18 Hispanics, has them keep a log of grocery purchases for one year, and obtains the following figures for expenditures on chips. Analyze the data using techniques from this chapter and an alpha of .05. Assume that expenditures per customer are normally distributed in the population.

$55	$37	$59	$57	$27	$28
$16	$46	$34	$62	$9	$34
$4	$25	$38	$58	$3	$50