A Study Was Designed to Investigate the Effects of Two

question 61

Multiple Choice

A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 470 with a standard deviation of 50 on a standardized test. Assuming a non-mound-shaped distribution, what percentage of the students scored over 620?

• A) at most 11%
• B) approximately 2.5%
• C) at least 89%
• D) at most 5.5%

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Definitions:

Collections Float

The time gap between when a check is deposited into a bank account and the funds are available for use.

Cash Management System

A suite of services and tools used by businesses to manage their cash flow, including collection services, disbursement services, and liquidity management.

Inventory Carrying Costs

Expenses related to storing and maintaining a company's stock, such as warehousing, insurance, and taxes.

Depreciation

An accounting method of allocating the cost of a tangible or physical asset over its useful life, representing how much of an asset's value has been utilized.