The Scores of Students on a Standardized Test Are Normally

question 35

Multiple Choice

The scores of students on a standardized test are Normally distributed with a mean of 300 and a standard deviation of 40. Between what two values do 99.7% of the test scores lie?

• A) 260 to 340
• B) 220 to 380
• C) 297 to 303
• D) 180 to 420

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Definitions:

Sample Size

The number of observations or data points used in a statistical sample.

Bootstrap Standard Error

A method for estimating the standard error of a statistic by resampling with replacement from the original data.

Bootstrap Distribution

A statistical technique that resamples a dataset to create a distribution for estimating the sampling distribution.

Standard Deviation

A metric that quantifies the spread or variability among a group of numbers, signaling the extent to which these numbers deviate from their average.