A Sample of 51 Elements Is Selected to Estimate a 95

question 11

Multiple Choice

A sample of 51 elements is selected to estimate a 95% confidence interval for the variance of the population.The chi-square values to be used for this interval estimation are

• A) 27.99 and 79.49.
• B) 32.357 and 71.420.
• C) 34.764 and 67.505.
• D) 12.8786 and 46.9630.

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Definitions:

Data Set

A collection of data points or values related to a subject.

Leaf

In the context of data representation, a part of a stem-and-leaf plot representing the smallest significant digit of data points.

Stem-and-Leaf Display

A graphical method used to represent quantitative data where each data value is split into a "stem" (the leading digit(s)) and a "leaf" (the last digit).

Test Scores

Numeric values that represent an individual's performance on assessments.