A Test Is Made Of $H _ { 0 } : \mu = 54$

question 38

Multiple Choice

A test is made of $H _ { 0 } : \mu = 54$ versus $H _ { 1 } : \mu \neq 54$ . A sample of size $n = 73$ is drawn, and $\bar { x } = 57$ . The population standard deviation is $\sigma = 21$ . Compute the value of the test statistic $z$ .

• A) 5.59
• B) 0.89
• C) 1.22
• D) 0.14

---

Definitions:

Direct Marketing

A form of advertising which allows businesses to communicate straight to the consumer through various media.

E-mail

A method of exchanging digital messages over the Internet between people using electronic devices.

Telemarketing

The practice of promoting products or services through telephone calls to potential customers.

Business Expenditures

The financial outflows or expenses incurred by a business in its operational activities, including costs of goods sold, salaries, and overhead.