Kelly Is an Attorney and Also an Excellent Typist

question 169

Multiple Choice

Kelly is an attorney and also an excellent typist. She can type 120 words per minute, but she is pressed for time because she has all the legal work she can handle at $75 per hour. Kelly's friend Todd works as a waiter and would like some typing work (provided that he can make at least his wage as a waiter, which is $25 per hour) . Todd can only type 60 words per minute.​

• A)​Kelly should do all the typing because she is faster.
• B)​Todd should do the typing as long as his earnings are more than $25 and less than $37.50 per hour.
• C)​Unless Todd can match Kelly's typing speed, he should remain a waiter.
• D)​Todd should do the typing, and Kelly should pay him $20 per hour.

Identify correct comma usage in lists within sentences.

Recognize the correct placement of commas with introductory elements.

Understand the need for commas in direct speech.

Recognize the appropriate use of commas in appositive phrases.

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Definitions:

Proportions

Ratios indicating the fractional part of a whole that have specific characteristics.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis, significant in hypothesis testing.

Level of Significance

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a measure of the risk of making a Type I error.

Proportions

A statistical measure that reflects the size of a part compared to the whole, typically expressed as a fraction or a percentage.