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%

---

Definitions:

Outstanding Deposit

Refers to funds that have been deposited but not yet credited to the depositor's account.

Outstanding Checks

Checks that have been written and recorded in the payer's accounting system but have not yet been cashed or cleared by the bank.

Adjusted Cash Balance

A financial metric representing the amount of available cash after accounting for adjustments such as outstanding checks or deposits in transit.

Check Register

A record book used to keep track of all the checks issued, deposits made, and current balance in a checking account.