the population mean of a concrete manufacturer bags is 80 lb with a population standard deviation...

Question

Question

the population mean of a concrete manufacturer bags is 80 lb with a population standard deviation of 1 lb the distribution is aprroximately normal

Determine a:the percentage of bags less than 78.5 lbs b: the %of bags greater than 80.8 lbs c: the % of bags between 78.5 and 80.8 lbs

Answer 1

Answer #1

a) Percentage of bags less than 78.5 lbs = 6.68%

b) Percentage of bags greater than 80 lbs = 21.19%

c) Percentage of bags between 78.5 lbs and 80.8 lbs = 72.13%

Answer 2

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