Solve the Problem $7.7$ And a Standard Deviation Of $4.5$ For One of the Populations and a Mean Of

question 91

Multiple Choice

Solve the problem.
-A variable of two populations has a mean of $7.7$ and a standard deviation of $4.5$ for one of the populations and a mean of $8.6$ and a standard deviation of $3.3$ for the other population. For independent samples of sizes 4 and 5, respectively, find the standard deviation of $\bar { x } _ { 1 } - \bar { x } _ { 2 }$ . Round your answer to the nearest hundredth if necessary.

• A)\(3.73\)
• B) \(1.2\)
• C) \(2.79\)
• D) \(7.79\)

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Definitions:

Payables Period

The average time it takes for a company to pay its invoices from suppliers, indicating the company's payment habits and cash flow management.

Credit Sales

Credit sales are transactions where the customer purchases goods or services on credit, agreeing to pay the supplier at a later date.

COGS

Cost of Goods Sold represents the direct costs associated with the production of the goods sold by a company.

Line of Credit

A flexible loan arrangement with a financial institution that allows a borrower to draw funds up to a specified limit at any time.