A random sample of n=9 pieces of Manila rope has a mean breaking strength of 82500...

A random sample of n=9 pieces of Manila rope has a mean breaking strength of 82500 pounds and a
standart deviation of 3154 pounds. Assuming that it is reasonable to treat these data as a sample
from a normal population, what can we assert with 95% confidence about the maximum error if
µ =82500 pounds is used as an estimate of the mean breaking strength of such rope? And construct
a %98 confidence interval for the mean breaking strenght of the given kind of rope. (Use the z table)

Expert Solution

Solution

for 95% Z is 1.96

For 98% z value is 2.33

orchestra answered 1 year ago

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