The Office of Student Services at a Large Western State

question 34

Multiple Choice

The Office of Student Services at a large western state university maintains information on the study habits of its full-time students. Their studies indicate that the mean amount of time undergraduate students study per week is 20 hours. The hours studied follows the normal distribution with a population standard deviation of six hours. Suppose we select a random sample of 144 current students. What is the probability that the mean of this sample is between 19 hours and 20 hours?

• A)2.00
• B)0.4772
• C)−2.00
• D)Cannot be calculated based on the given information.

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Definitions:

General Ledger

The primary accounting record of a company that uses double-entry bookkeeping, summarizing all transactions over a period.

Cash Receipts Journal

A dedicated accounting journal used to record all cash inflows or receipts of a business.

Purchases Journal

A record of transactions specifically used for tracking all purchases of goods and services on credit.

General Journal

A basic accounting ledger that records all transactions of a business in chronological order, providing a detailed account.