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

question 49

Short Answer

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 value of the test statistic is ________.

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Definitions:

Aesthetic Experience

Experience of beauty or artistic taste, engaging the senses, emotions, and intellect.

Laughing

The involuntary reaction of expressing mirth, amusement, joy, or scorn with audible chuckles or other sounds.

Aristotle

An ancient Greek philosopher and polymath who made significant contributions to numerous fields of knowledge, including ethics, metaphysics, logic, and natural sciences.

Aesthetic Experience

A complex emotional and cognitive response one has when appreciating art or beauty, often characterized by a sense of pleasure or meaningful interpretation.