13. A score that is 9 points above the mean corresponds to a z-score of z = 1.50. What is the population standard deviation?
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A: Given that, Mean = 110 Standard deviation = 18
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A: You have asked only question 3. So, the answer is given for question 3 below in the next step.
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A: We have given that. X~N( μ , ?^2 ) μ= 65 , ?=10 Z-score =( x - μ )/?
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A: Solution: 7. From the given information, n = 1.
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A: Given : Suppose the population values 50 and 80 and that their corresponding z scores are -1 and 2…
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A: Given X = 9 also X = μ + 1.5 (σ) --1
Q: Suppose a population is known to be normally distributed with a mean, u, equal to 116 and a standard…
A: Given: Population is known to be normally distributed with a mean which is equal to 116 and SD equal…
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