The Manager of a Grocery Store Has Taken a Random

question 40

Multiple Choice

The manager of a grocery store has taken a random sample of 100 customers.The average length of time it took these 100 customers to check out was 3 minutes.It is known that the standard deviation of the population of checkout times is 1 minute.The 95% confidence interval for the true average checkout time (in minutes) is

• A) 2.5 to 3.5.
• B) 1.36 to 4.64.
• C) 1 to 5.
• D) 2.804 to 3.196.

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Definitions:

Enforce

To compel observance of or adherence to laws, rules, or obligations.

Incidental Beneficiary

A person who gains a benefit from a contract between two other parties, but whose benefit was not the reason the contract was created.

Wage Earner's Assignment

A legal agreement allowing for the voluntary deduction of money from an employee's wages to pay off debts.

Statutes

Laws established by legislative bodies at local, state, or federal levels.