A Professor Believes the Students in a Statistics Class This

question 23

Multiple Choice

A professor believes the students in a statistics class this term are more creative than most other students attending the university. A previous study found that students at the university had a mean score of 35 on a standard creativity test, and the current class has an average score of 40 on this scale with an estimated population standard deviation of 7. The standard deviation of the distribution of means is 1.63.
-The t score is

• A)(40 - 35)/ 7 = 0.71
• B)(40 - 35)/ 1.63 = 3.07
• C)(40 - 35)/ 7² = 5 / 49 = 0.10
• D)(40 - 35)/ 1.63² = 5 / 2.66 = 1.88

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Definitions:

Retained Earnings

The share of a company's earnings that are held back and not distributed as dividends to its shareholders.

Net Income

Net income is the total profit of a company after all expenses, taxes, and costs have been subtracted from total revenue, indicating the company's financial performance.

Retained Earnings

The part of net profits that is not distributed as dividends but is kept by the company for reinvestment in its primary business or for debt repayment.

Dividends Declared

Profits distributed by a company to its shareholders, usually determined by the company's board of directors.