TABLE 9-4 A Drug Company Is Considering Marketing a New Local Anesthetic

question 106

Multiple Choice

TABLE 9-4
A drug company is considering marketing a new local anesthetic. The effective time of the anesthetic the drug company is currently producing has a normal distribution with an mean of 7.4 minutes with a standard deviation of 1.2 minutes. The chemistry of the new anesthetic is such that the effective time should be normally distributed with the same standard deviation, but the mean effective time may be lower. If it is lower, the drug company will market the new anesthetic; otherwise, they will continue to produce the older one. A sample of size 36 results in a sample mean of 7.1. A hypothesis test will be done to help make the decision.
-Referring to Table 9-4, the appropriate hypotheses are:

• A) H₀ : μ = 7.4 versus H₁ : μ ≠ 7.4
• B) H₀ : μ ≤ 7.4 versus H₁ : μ > 7.4
• C) H₀ : μ ≥ 7.4 versus H₁ : μ < 7.4
• D) H₀ : μ > 7.4 versus H₁ : μ ≤ 7.4

---

Definitions:

Mass Media

Forms of communication, such as newspapers, radio, and television, that reach a large audience.

Social Interaction

The dynamic, reciprocal exchange of actions and reactions among individuals and between individuals and their environment, which forms the basis of social relationships.

Pornography

Material that depicts sexual content explicitly for the purpose of sexual arousal.

Feminists

Individuals who advocate for and work towards achieving gender equality and addressing issues of gender-based discrimination.