A Survey Claims That 9 Out of 10 Doctors (I $\alpha = 0,10 , \text { b) } \alpha = 0,05 \text {, and c) } \alpha = 0,0 ]$

question 132

Multiple Choice

A survey claims that 9 out of 10 doctors (i.e., 90 % ) recommend brand Z for their patients who have children. To test this claim against the alternative that the actual proportion of doctors who recommend brand Z is less than 90 % , a random sample of doctors was taken. Suppose the test statistic is z= -2.23 . Can we conclude that H0 should be rejected at the a) $\alpha = 0,10 , \text { b) } \alpha = 0,05 \text {, and c) } \alpha = 0,0 ]$ level?

• A) a) yes; b) yes; c) no
• B) a) yes; b) yes; c) yes
• C) a) no; b) no; c) no
• D) a) no; b) no; c) yes

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Definitions:

Employee

A person employed either on a part-time or full-time basis under an employment agreement, which can be spoken or written, explicit or tacit, and possesses acknowledged obligations and privileges.

Safe Working Conditions

The provision of a work environment that is free from recognized hazards that could cause death or serious physical harm to employees.

Duty Of An Agent

The responsibilities and obligations that an agent has towards their principal, including acting in the principal's best interest.

Principal

In finance, refers to the original sum of money borrowed in a loan, or invested, separate from interest or profit.