A Random Sample of Size 25 Taken from a Normally

question 142

Multiple Choice

A random sample of size 25 taken from a normally distributed population resulted in a sample standard deviation of a 0.93054. The lower and upper limits of a 99% confidence interval for the population variance would be:

• A) 9.886 and 45.559
• B) 3.144 and 6.750
• C) 0.678 and 1.449
• D) 0.456 and 2.102
• E) 1.493 and 6.430

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Definitions:

Instrumentalities

The perceived probability that performing at a certain level will lead to the attainment of a valued outcome.

Valences

In the context of psychology, it refers to the intrinsic attractiveness or aversiveness of an event, object, or situation.

Task Goals

The specific objectives or targets that an individual or team aims to achieve within a task.

Expectancy Theory of Motivation

A theory suggesting that an individual's motivation is based on their expected outcome of specific behaviors and the value they place on those outcomes.