Which of the Following Is Not a Method Used for Determining

question 76

Multiple Choice

Which of the following is not a method used for determining whether data are from an approximately normal distribution?

• A) Compute the intervals \(\bar { x } \pm s , \bar { x } \pm 2 s\), and \(\bar { x } \pm 3 s\). The percentages of measurements falling in each should be approximately \(68 \% , 95 \%\), and \(100 \%\) respectively.
• B) Find the interquartile range, IQR, and standard deviation, s, for the sample. Then \(\frac { \mathrm { IQR } } { s } \approx 1.3\).
• C) Construct a normal probability plot. The points should fall approximately on a straight line.
• D) Construct a histogram or stem-and-leaf display. The shape of the graph or display should be uniform (evenly distributed).

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Definitions:

Data

Information and figures compiled for analyzing or referring.

Y-intercept

The point where a line crosses the y-axis of a graph, reflecting the value of the dependent variable when the independent variable is zero.

Regression Equation

A mathematical formula used to predict a dependent variable based on one or more independent variables, illustrating the relationship between them.

Y-Intercept

The point where a line crosses the Y-axis of a graph, representing the value of the dependent variable when all independent variables are zero.