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A random sample of five accidents resulted in the following number of persons injured: 18, 15, 12, 19, & 21. Using the .01 significance level, can we conclude the population mean is less than 20 for all accidents?

a) State Ho and Ha?

b) Test statistic =

c) Critical value =

d) Reject Ho: (yes or no)

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  • Reference No.:- M944228

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