A Company Claims That 9 Out of 10 Doctors (I $90 \%$

question 57

Multiple Choice

A company claims that 9 out of 10 doctors (i.e., $90 \%$ ) recommend its brand of cough syrup to their patients. To test this claim against the alternative that the actual proportion is less than $90 \%$ , a random sample of doctors was taken. Suppose the test statistic is $z = - 2.23$ . Can we conclude that $H _ { 0 }$ should be rejected at the a) $\alpha = .10$ , b) $\alpha = .05$ , and c) $\alpha = .01$ level?

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

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Definitions:

Parents Responsible

An obligation or duty of parents to take care of, make decisions for, and financially support their children.

Torts

A branch of civil law dealing with situations where one's negligence or intentional act causes harm or loss to another, leading to legal liability.

Minor Children

Individuals under the age of legal adulthood, who are considered incapable of making legal decisions on their own behalf.

Arbitration Provision

A clause in a contract that requires the parties to resolve their disputes through an arbitration process rather than through the court system.