Exhibit 9-2

question 5

Multiple Choice

Exhibit 9-2.The owner of a large car dealership believes that the financial crisis decreased the number of customers visiting her dealership.The dealership has historically had 800 customers per day.The owner takes a sample of 100 days and finds the average number of customers visiting the dealership per day was 750.Assume that the population standard deviation is 350. Refer to Exhibit 9-2.At a 5% significance level,the critical value(s) is (are) ___________.

• A)1.645
• B)-1.645
• C)-1.96 and 1.96
• D)-2.030 and 2.030

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Definitions:

Punctuation

Punctuation consists of symbols and marks used in writing to separate sentences and their elements, clarifying meaning and enhancing readability.

Parallel Structure

A grammatical or structural consistency within a text or series of sentences where similar parts of a sentence are expressed using the same pattern of words to show that two or more ideas have the same level of importance.

Parallel Structure

The repetition of the same pattern of words or phrases within a sentence or passage to show that two or more ideas have the same level of importance.

Ventura Aquifer

A natural underground layer of water-bearing permeable rock or materials, specifically located in or near Ventura, used for water extraction.