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OpenStudy (anonymous):
a population of N=15 scores has a mean of μ=8. One score in the population is changed from x=2- to x=5. What is the value for the new population mean?
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OpenStudy (kropot72):
Please advise if "...changed from x=2- to x=5" should read "....changed from x=2 to x=5". In other words, should the negative sign be deleted?
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