A Test Score of 48

question 140

Multiple Choice

A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z score corresponding to the given value and use the z score to determine whether the value is significant. Consider a score to be
Significant if its z score is less than -2.00 or greater than 2.00. Round the z score to the nearest tenth if necessary.

• A) 1.6; not significant
• B) -1.6; not significant
• C) -17.6; significant
• D) -1.6; significant

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Definitions:

Biological Methods

Techniques and processes used in the biological sciences, often for research, conservation, or managing natural resources, involving living organisms or derivatives thereof.

Bacteria Killed

Refers to the elimination or death of bacteria, typically through physical or chemical means such as disinfection or antibiotics.

Floating Objects

Items that are able to remain on the surface of a liquid or in the atmosphere due to the principles of buoyancy or air currents.

Pollution Tolerance

The ability of an organism or a species to withstand pollution in its environment without suffering significant adverse effects.