TABLE 9-3 A Drug Company Is Considering Marketing a New Local Anesthetic

question 155

Short Answer

TABLE 9-3
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 a 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. The company will market the new local anesthetic as being better if there is evidence that the population mean effective time is greater than the 7.4 minutes of the current local anesthetic.
-Referring to Table 9-3, if you select a sample of 25 new local anesthetics and are willing to have a level of significance of 0.05, the probability of the company failing to market the new local anesthetic when it is better is ________ if the population mean effective time is 8 minutes.

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Definitions:

Disinfectant

A chemical substance used to kill or inactivate harmful microorganisms on surfaces and objects.

Specimen Container

A container used to collect and transport samples, such as bodily fluids or tissues, for medical testing and analysis.

Patient Gown

A hospital or medical facility garment, typically loose and open at the back, provided to patients to wear during medical examinations or treatments.

Tongue Blades

Thin tools, often made of wood, used in medical examinations to depress the tongue and inspect the mouth and throat.