TABLE 7-1 Times Spent Studying by Students in the Week Before Final

question 320

Short Answer

TABLE 7-1
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 8 hours. A random sample of 4 students was taken from a population of 50 in order to estimate the mean study time for the population of all students. Use the finite population correction.
-Referring to Table 7-1, what is the probability that the sample mean exceeds the population mean by more than 2 hours?

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Definitions:

Borrowing Money

The act of obtaining funds from a lender under the agreement to pay back the principal amount along with interest or other charges.

Payroll Expense

Payroll expense is the total amount of wages, salaries, and other compensation that a business pays to its employees over a specific period.

Contra Account

A type of account used in accounting to reduce the value of a related account, creating a net balance that reflects the correct value of the asset or liability.

Cash Flow Problems

Situations where a business struggles to manage the timing and amounts of cash inflows and outflows, affecting its ability to meet financial obligations.