Stratified sampling is applicable to difference, mean-per-unit, and ratio estimation, but it is most commonly used with

What is the cash conversion cycle for a firm with a receivables period of 40 days, a payables period of 30 days, and an inventory period of 60 days?

A) 70 days B) 130 days C) 50 days D) 10 days

John Gates made $25,000 last year and paid $2,500 in taxes on this income. Jane Smith made

$30,000 last year and paid $3,000 in taxes on this income. What type of tax is the government using? A) progressive taxes B) regressive taxes C) proposed taxes D) proportional taxes E) impossible to calculate with the information provided