Scores on a Test Have a Mean of 70 And Q

question 6

Multiple Choice

Scores on a test have a mean of 70 and $Q _ { 3 }$ is 83 . The scores have a distribution that is approximately normal. Find $P _ { 90 }$ (You will need to first find the standard deviation.)

• A) 92.9
• B) 93.7
• C) 95.6
• D) 94.8

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Definitions:

Fixed-Effects ANOVA

A statistical method used to analyze the differences among group means in a sample where the groups are defined by some fixed factor.

Random-Effects ANOVA

A statistical method that accounts for variability within and across groups when analyzing differences among multiple groups.

Multifactor Experiment

A multifactor experiment is an investigative process in research that involves the manipulation of multiple variables to determine their effect on the subject of interest.

SSE

Sum of Squares due to Error; a measure used in statistics that quantifies the variance in an observed variable not explained by the predictive model.