The Mean Annual Incomes of Certified Welders Are Normally Distributed

question 35

Multiple Choice

The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a population standard deviation of $2,000. The ship building association wishes to find out whether their welders earn more or less than $50,000 annually. The alternate hypothesis is that the mean is not $50,000. If the level of significance is 0.10,what is the critical value?

• A)+1.645
• B)−1.282
• C)±1.282
• D)±1.645

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Definitions:

Sales Revenue

The total amount of money generated by the sale of goods or services before any costs or expenses are deducted.

Direct Method

An approach to preparing the cash flow statement where actual cash flow information from operating activities is used.

Accounts Receivable

Receivables from customers for goods or services that have been furnished but remain unpaid.

Net Cash

The amount of cash remaining after all cash outflows are subtracted from total cash inflows, indicating a company's liquidity position.