In 2011,the Student Body of a State University in Alabama

question 132

Essay

In 2011,the student body of a state university in Alabama consists of 30% freshmen,25% sophomores,27% juniors,and 18% seniors.A sample of 400 students taken from the 2012 student body showed that there are 138 freshmen,88 sophomores,94 juniors,and 80 seniors.Test with 5% significance level to determine whether the student body proportions have changed.

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Definitions:

Payment

The transfer of money or goods from one party to another as an exchange for goods, services, or to fulfill a legal obligation.

Standard Deduction

A fixed dollar amount that reduces the income on which an individual is taxed, and varies according to filing status, with no itemization required.

State Taxes Paid

State Taxes Paid refers to the total amount of money paid by an individual or entity to a state government, including income, sales, and property taxes, which may be deductible on federal tax returns.

Tax Return

A form filed with a federal, state, or local tax collection agency detailing income, expenses, and other pertinent tax information, used to calculate tax liability.