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

question 162

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, for a test with a level of significance of 0.10, the critical value would be ________.

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Definitions:

Long-Term Memory

A type of memory capable of storing information for extended periods, often throughout an individual's life.

Nodes

Points or intersections within a network where connections meet, often used to refer to individual elements or devices within a communication network.

Base-Rate Information

Statistical information about the frequency of events or characteristics within a given population, used in decision-making processes.

Illusory Correlation

The false perception of a relationship between two variables or events, often due to a cognitive bias or mistaken assumption.