In the Following Distribution,the Scores Are Grouped into Class Intervals $$\begin{array} { l c } \mathrm { X } & \mathrm { f } \\20 - 24 & 2 \\15 - 19 & 5 \\10 - 14 & 4 \\5 - 9 & 1 \\\hline\end{array}$$

question 55

True/False

In the following distribution,the scores are grouped into class intervals that are each 5 points wide.? $$\begin{array} { l c } \mathrm { X } & \mathrm { f } \\20 - 24 & 2 \\15 - 19 & 5 \\10 - 14 & 4 \\5 - 9 & 1 \\\hline\end{array}$$

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Definitions:

Z-statistic

A measure that describes how many standard deviations an element is from the mean of a population in standardized testing.

Alpha Levels

A threshold value that determines the significance level of a statistical test, representing the probability of rejecting a true null hypothesis (committing a Type I error).

Two-tailed Test

A statistical test that considers the possibility of both positive and negative differences or effects.