kolbiking1927 kolbiking1927

03-01-2020
Mathematics

contestada

Some IQ tests are standardized based on the assumption that the population mean is 100 and the standard deviation is 15. Test graders decide to reject this hypothesis if a random sample of 25 people has a mean IQ greater than 110. Assuming that IQ scores are normally distributed, what's the power of the test if the true population mean is 105?

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kingsarechampions201 kingsarechampions201

23-02-2021

Answer:

.048

Step-by-step explanation:

1 - (probability of making a type 2 error) = power

1 - (.952) = .048

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