A Random Sample of 64 Observations Produced a Mean Value $\mu$

question 25

Multiple Choice

A random sample of 64 observations produced a mean value of 82 and standard deviation of 5.5. The 90% confidence interval for the population mean $\mu$ is between

• A) 81.86 and 82.14
• B) 80.65 and 83.35
• C) 80.87 and 83.13
• D) 81.31 and 82.69
• E) None of the above answers are correct.

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Emotional states that are characterized by feelings of happiness, contentment, and optimism.

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