(All Steps) A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population with a mean of µ = 80
Question: A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population with a mean of µ = 80 and a standard deviation of ơ = 20. The researcher expects a 12-point treatment effect and plans to use a two-tailed hypothesis test with α = .05.
- Compute the power of the test if the researcher uses a sample of n = 16 individuals. (See Example 8.6.)
- Compute the power of the test if the researcher uses a sample of n = 25 individuals.
Deliverable: Word Document 
![[Solution Library] For a population with a](/images/solutions/MC-solution-library-71770.jpg "[Solution Library] For a population with a mean of µ= 50 and a")
[Solution Library] For a population with a mean of µ= 50 and a
![[Solution Library] If the population standard deviation](/images/solutions/MC-solution-library-71771.jpg "[Solution Library] If the population standard deviation is ơ =")
[Solution Library] If the population standard deviation is ơ =
(Solution Library) For a population with a mean of µ = 60 and a standard
(Solved) A population forms a normal distribution with a mean
![[Solution] The population of IQ scores forms](/images/solutions/MC-solution-library-71774.jpg "[Solution] The population of IQ scores forms a normal distribution")
[Solution] The population of IQ scores forms a normal distribution
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