Discussion:
Q: A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents potions categorized according to the indicated values. Use a 0.10 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation?
Cents portion of check 0-24 25-49 50-74 75-99
Number 59 16 13 12
Test statistic is
Critical Value is
P-value is
Conclusion is