On a Drafting Test, the Scores Achieved Are as Follows

question 7

Short Answer

On a drafting test, the scores achieved are as follows: 4 students, 82%; 5 students, 77%; 4 students, 88%; 5 students, 84%; 1 student, 99%, and 1 student, 58%. What was the average score on the test? Round the answer to the nearest hundredth as necessary.

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Definitions:

Randomized Block Design

An experimental design that involves dividing subjects into blocks and then randomly applying different treatments within each block to control for variance among blocks.

Blocks Mean Square

A measure used in the analysis of variance (ANOVA) to assess the variability within groups or blocks of data.

Sum of the Squared Deviations

A measure used in statistics, representing the total of the squared differences between each observation in a dataset and the dataset's mean.

Blocks Variation

The variation among experimental units that is accounted for by grouping them into blocks based on certain characteristics to reduce confounding effects.