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Mathematics, 31.08.2021 04:20 deedee363

g The average length of time it takes to complete a Ph. D. in statistics is 5.2 years, with a standard deviation of 0.7 years. In a random sample of 40 individuals with a Ph. D. in statistics, what is the approximate probability that the sample average of Ph. D. completion time was less than 5.4 years

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