For the Next Questions, Test the Given Claim Using the P-Value

question 27

Essay

For the next questions, test the given claim using the P-value method for
hypothesis testing about a proportion. Assume a simple random sample has been
taken, the conditions for a binomial distribution are satisfied, and the sample
proportions can be approximated by a normal distribution.
In order to track the percentage of misdiagnoses by Emergency Room doctors, a sample
of 900 patients revealed that 45 patients were misdiagnosed with indigestion instead of
a heart attack. Test the claim that physicians misdiagnose less than 6% of heart attacks.
Use a .01 significance level.
-Identify the P-value and level of significance.

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Definitions:

Genetic Heritability

The proportion of variation in traits within a population that is due to genetic differences among individuals.

Extraversion-Introversion

A personality dimension that contrasts tendencies toward sociability, enthusiastic activities versus reflection, and quiet activities.

Twin-Study Method

A research method in psychology that examines the relative contribution of genetic and environmental influences on traits by comparing the similarity of identical and fraternal twins.

Extraverts

Individuals who are outgoing, sociable, and draw energy from interacting with others.