A sample has a mean of M = 30 and a standard deviation of σ = 8. Find the z-score for each of the following X values from this sample.
Answer to relevant QuestionsA sample has a mean of M = 25 and a standard deviation of σ = 5. For this sample, find the X value corresponding to each of the following z-scores. For a normal distribution with a mean of μ = 60 and a standard deviation of σ = 10, find the proportion of the population corresponding to each of the following. a. Scores greater than 65. b. Scores less than 68. c. Scores ...A psychology class consists of 14 males and 36 females. If the professor selects names from the class list using random sampling, a. What is the probability that the first student selected will be a female? b. If a random ...Find each of the following probabilities for a normal distribution. A population of scores forms a normal distribution with a mean of µ = 80 and a standard deviation of σ = 10. a. What proportion of the scores have values between 75 and 85? b. For samples of n = 4, what proportion of the ...
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