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QUESTION 8 The average annual salary in Pennsylvania was $25,000 in 1992. Assume that salaries were normally distributed for a certain group of wage earners,

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QUESTION 8 The average annual salary in Pennsylvania was $25,000 in 1992. Assume that salaries were normally distributed for a certain group of wage earners, and the standard deviation of this group was $3,000. Find the probability that for a randomly selected sample of 10 individuals, the mean salary was less than $24,000. O a. 0.9826 O b.0.4826 O c. 0.1469 O d. 0.3531

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