Test Hypotheses About a Population Proportion
-A Pharmaceutical Company Manufactures $2 \mathrm { mg }$

question 78

Short Answer

Test Hypotheses about a Population Proportion
-A pharmaceutical company manufactures a 81 -mg pain reliever. Company specifications include that the standard deviation of the amount of the active ingredient must not exceed $2 \mathrm { mg }$ . The quality -control manager selects a random sample of 30 tablets from a certain batch and finds that the standard deviation is $2.4 \mathrm { mg }$ . Assume that the amount of the active ingredient is normally distributed. Test the claim that the standard deviation of the amount of the active ingredient is greater than $2 \mathrm { mg }$ at the $\alpha = 0.05$ level of significance.

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Definitions:

Mind

The set of cognitive faculties that enables consciousness, perception, thinking, judgement, and memory.

Natural Selection

The process whereby organisms better adapted to their environment tend to survive and produce more offspring.

Biologists

Scientists who study living organisms and their relationship to the environment, including their structure, function, growth, and evolution.

Mutation

A new gene or combination of genes.