Find the Indicated Probability or Percentage for the Sampling Error

question 20

Multiple Choice

Find the indicated probability or percentage for the sampling error.
-Scores on a chemistry final exam are normally distributed with a mean of 280 and a standard deviation of 50. Determine the percentage of samples of size 4 that will have mean scores within 35 Points of the population mean score of 280.

• A)91.92%
• B)51.60%
• C)99.48%
• D)83.84%

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Definitions:

Highly Developed

Describes a state of advanced growth or progress, particularly in terms of economic, social, or technological aspects.

Eideticists

Individuals possessing eidetic memory, a rare ability to recall images, sounds, or objects in memory with extreme accuracy and in detailed volume.

Mnemonists

Individuals with the ability to remember an unusually large amount of information, often employing techniques such as the method of loci.

Short-Term Memory

The capacity of the brain to hold a small amount of information in an active, readily available state for a short period of time.