Instruction 9-4 A Drug Company Is Considering Marketing a New Local Anaesthetic

question 55

True/False

Instruction 9-4
A drug company is considering marketing a new local anaesthetic. The effective time of the anaesthetic 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 anaesthetic is such that the effective time should be normal with the same standard deviation, but the mean effective time may be lower. If it is lower, the drug company will market the new anaesthetic; otherwise, it will continue to produce the older drug. 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 Instruction 9-4,the null hypothesis will be rejected with a level of significance of 0.10.

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Definitions:

Nested Case-Control

A study design used within a cohort study, where a subset of participants with a specific outcome is compared to a subset without the outcome from the same cohort.

Recall Bias

A systematic error caused by differences in the accuracy or completeness of the recollections retrieved by study participants.

Economical

Related to economics or economy, often used to describe something that is cost-effective or does not waste resources.

Controls

Subjects or groups in a study or experiment that are used as a standard of comparison for checking the results of a survey or experiment.