A Random Sample of Size 20 Taken from a Normally

question 28

Multiple Choice

A random sample of size 20 taken from a normally distributed population resulted in a sample variance of 32. The lower limit of a 90% confidence interval for the population variance would be:

• A) 52.185.
• B) 20.375.
• C) 20.170.
• D) 54.931.

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Definitions:

Phallic Stage

A phase in Freudian psychosexual development, occurring between about ages 3 and 6, during which the libido is centered on the genital area.

Industry

The production of goods or services within an economy, characterized by sectors like manufacturing, services, and technology.

Initiative

The ability to assess and initiate things independently, often related to taking the first step in actions without being instructed.

Basic Trust

A concept introduced by Erik Erikson, referring to the first stage of psychological development where an infant learns to trust their environment based on the consistency of caregiver support.