A Professor Would Like to Test the Hypothesis That the Average

question 30

Multiple Choice

A professor would like to test the hypothesis that the average number of minutes that a student needs to complete a statistics exam has a standard deviation that is less than 5.0 minutes. A random sample of 15 students was selected and the sample standard deviation for the time needed to complete the exam was found to be 4.0 minutes. The degrees of freedom for this hypothesis test would be ______.

• A)16
• B)15
• C)14
• D)13

---

Definitions:

Trade Accounts Receivable

Amounts owed by customers to a business, specifically from sales transactions.

Net Realizable Value

The estimated selling price of goods, minus the costs of their completion and sale.

Amounts Due

Financial obligations or debts that are payable to another party or entity.

Grace Period

A time frame after a due date during which a payment can be made without penalty or impact on credit standing.