The Owner of a Local Nightclub Has Recently Surveyed a Random

question 99

Multiple Choice

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to determine whether or not the mean age of her customers is over 30. If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. If she wants to be 99% confident in her decision, what rejection region should she use?

• A) Reject H0 if t > 2.58.
• B) Reject H0 if t < - 2.34.
• C) Reject H₀ if t > 2.34.
• D) Reject H₀ if t < - 2.55.

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Definitions:

Debit

An accounting entry that results in either an increase in assets or a decrease in liabilities on a company's balance sheet.

Double-Entry Accounting

A system of bookkeeping where every entry to an account requires a corresponding and opposite entry to a different account.

Debits

Accounting entries that represent an increase in assets or expenses or a decrease in liabilities, equity, or revenue.

Credits

Recognition or acknowledgment for something received or accomplished, often used in finance to denote money received or a decrease in liabilities.