When Determining the Sample Size,the Standard Deviation May Not Be

question 37

Multiple Choice

When determining the sample size,the standard deviation may not be known.Which of the following was not mentioned in your text as a way to estimate the standard deviation?

• A)consult secondary sources
• B)estimate based on researcher judgment
• C)estimate from the mean
• D)conduct a pilot study

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Definitions:

Sales Tax

A tax imposed by a government on the sale of goods and services.

Credit Period

Length of time allowed for payment of goods sold on account.

Discount Period

The time frame in which a payment can be made at a reduced rate.

Contra-revenue Account

An account that offsets revenue accounts on the income statement, such as sales returns, allowances, and discounts.