Given the Data Below, What Is the 90% Confidence Interval

question 55

Multiple Choice

Given the data below, what is the 90% confidence interval for the variance? 22, 23, 19, 17, 29, 25

• A) 4.21 - 99.07
• B) 15.32 - 28.66
• C) 8.27 - 79.88
• D) 16.87 - 56.52

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Definitions:

WAIS

Wechsler Adult Intelligence Scale, a standard test used to measure an adult's intellectual and cognitive ability.

Stanford-Binet

An intelligence test designed to measure five factors of cognitive ability: fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.

Intellectual Disability

A condition characterized by significant limitations in both intellectual functioning and in adaptive behavior, which covers many everyday social and practical skills.

Savant Syndrome

A rare condition in which someone with significant mental disabilities demonstrates certain abilities far in excess of average.