A chewing gum manufacturer wishes to determine if his customers prefer one flavor gum other flavor. He selects a random sample of customers and records the flavor of gum that purchased. Compute the test value for the data given.
$\begin{array} { l c } \text { Type } & \text { Number Sold } \ \text { Spearmint } & 25 \ \text { Wintergreen } & 32 \ \text { Cherry } & 18 \ \text { Cinnamon } & 43 \end{array}$

Question

Quizplus · Accepted Answer

The test value is calculated using a chi-square test for goodness of fit. The expected frequency for each flavor is the total number of gums sold divided by the number of flavors. The test value is the sum of the squared differences between observed and expected frequencies, divided by the expected frequencies.

A Chewing Gum Manufacturer Wishes to Determine If His Customers