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:

Domestic Firm

A company that operates primarily within the borders of its home country and is subject to its home country's jurisdiction and regulations.

Ownership Interest

Indicates an individual's or entity's legal rights and stakes in a company or property.

Consolidated Stockholders' Equity

The total equity in a conglomerate of all the shareholders combined, as if the conglomerate and its subsidiaries were a single entity.

Investment Income

Income received from investment assets, including dividends, interest, and capital gains.