When considering effects from eliminating the penny as a unit of currency in the United States, the author randomly selected the amounts from 100 credit card purchases and recorded the cents portions of those amounts. The table below lists those cents portions categorized according to the indicated values. Use a 0.05 significance level to test the claim that the four categories are equally likely. The author expected that many credit card purchases for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation?

Conduct the hypothesis test and provide the test statistic, critical value and or P-value, and state the conclusion.

Cents portion Number 0-24 33 25-49 16 50-74 23 75-99 28