A Study Was Designed to Investigate the Effects of Two

question 32

Multiple Choice

A study was designed to investigate the effects of two variables - (1) a studentʹs level of mathematical anxiety and (2) teaching method - on a studentʹs 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 480 with a standard deviation of 30
On a standardized test. Assuming a mound-shaped and symmetric distribution, in what range
Would approximately 68% of the students score?

• A)between 450 and 510
• B)above 510
• C)below 510
• D)below 450 and above 510

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Definitions:

Ampicillin Suspension

A liquid antibiotic formulation used to treat various bacterial infections, especially those caused by penicillin-sensitive bacteria.

Mg

A chemical element with the symbol Mg and atomic number 12, known as magnesium, which is a shiny gray solid and plays important roles in the human body.

Ml

A milliliter is a metric system volume unit that is equal to 1/1000th of a liter.

Gram

A unit of measurement for mass that is exactly one thousandth part of a kilogram.