A Random Sample of Size 15 Taken from a Normally

question 47

Multiple Choice

A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25.The upper limit of a 95% confidence interval for the population mean would equal:

• A)77.77
• B)72.23
• C)88.85
• D)77.27

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Definitions:

Structured Assessments

Another term used to describe an objective assessment.

Questionnaires

A set of written questions used to collect information from respondents for research or assessment purposes.

Self-Reports

Self-reports are a type of psychological test or survey in which individuals provide information about themselves, often regarding behaviors, feelings, or attitudes.

Formal Personality Assessments

Structured and systematic psychological tests used to evaluate an individual's personality traits and characteristics in a formal setting, often for diagnostic or selection purposes.