In Presenting Data That Result from an Experiment, a Group

question 6

Multiple Choice

In presenting data that result from an experiment, a group of students show that most of their measurements fall on a straight diagonal line on their graph. However, two of their data points are "outliers" and fall far to one side of the expected relationship. What should they do?

• A) Do not show these points but write a footnote that the graph represents the correct data.
• B) Average several trials and therefore rule out the improbable results.
• C) Show all results obtained and then try to explore the reason(s) for these outliers.
• D) Throw out this set of data and try again.
• E) Change the details of the experiment until they can obtain the expected results.

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Definitions:

Confidence Level

The probability that a confidence interval contains the true population parameter.

Population Standard Deviation

A measure of the dispersion or variability of a population dataset, quantifying how much the members deviate from the population mean.

Mean Annual Return

The average return earned by an investment over a specific number of years, expressed on an annual basis.

Bond Funds

Mutual funds that invest primarily in bonds or other types of debt securities.