You measure 39 backpacks' weights, and find they have a mean weight of 33 ounces. Assume...

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Answer 1

Answer #1

as we know that margin of error =z*std deviation/sqrt(n)

for 95% CI ; critical value of z =1.96

therefore margin of error =1.96*6.6/sqrt(39)=2.07

Answer 2

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