A Random Sample of 25 Statistics Examinations Was Selected

question 56

Multiple Choice

A random sample of 25 statistics examinations was selected. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is _____.

• A) 70.02 to 81.98
• B) 69.82 to 82.18
• C) 70.06 to 81.94
• D) 69.29 to 82.71

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Definitions:

Risky Investment

An investment with a high degree of risk that could lead to the loss of the principal amount but also offers potentially high returns.

Proportionate Ownership

The percentage of ownership that an investor holds in a company, typically represented in terms of share ownership.

Preemptive Rights

The rights that allow existing shareholders to purchase additional shares before new shareholders can buy them, in order to maintain their proportionate ownership in the company.

Cumulative

Cumulative refers to the total amount accumulated over a series of periods, often used in the context of dividends or other accumulative data.