In an analysis of variance, which value is determined by the size of the sample variances?

At 55 years of age, Ross lost his job and had to be retrained in a new field that required taking a course over the Internet. Never having gone online, he was baffled while his younger classmates excelled. His frustration may be attributed to differences

cultural context. ethnic context. social context. historical context.

Devices such as "smart caps" and sensor-activated room lights are

A) regarded by most older adults with disabilities as invasions of privacy. B) cost-effective and available to most older adults in industrialized countries. C) too technically complicated to be useful to most older adults. D) not considered essential medical equipment under U.S. government-sponsored health-care coverage.