A Random Sample of 49 Statistics Examinations Was Taken

question 53

Multiple Choice

A random sample of 49 statistics examinations was taken.The average score, in the sample, was 84 with a variance of 12.25.The 95% confidence interval for the average examination score of the population of the examinations is

• A) 80.48 to 87.52.
• B) 77.40 to 86.60.
• C) 82.99 to 85.01.
• D) 68.00 to 100.00.

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Definitions:

Secure Website

A website that uses encryption, often represented by HTTPS in the URL, to protect the exchange of information from cyber threats.

CARS Checklist

A method for evaluating the credibility, accuracy, reasonableness, and support of information sources.

Sophisticated

A term describing something complex, refined, or developed in a high degree of detail.

Biased Results

Outcomes of analyses or experiments that are skewed due to flawed methodology, prejudice, or any factor that deviates from objectivity.