Examlex
You want to estimate the average useful life of the lithium cell phone batteries that your company has just put on the market.You take a random sample of 25 batteries to be tested.The test reveals a sample average life of 1560 hours.The sample standard deviation is 68 hours.Assume that the population distribution is approximately normal.Construct a 95% confidence interval estimate of average useful life for the full population of lithium cell phone batteries produced by your company.Report the upper bound for your interval.
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.
Fluid Intelligence
Our ability to reason speedily and abstractly; tends to decrease with age, especially during late adulthood.
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