Posted: March 15th, 2017
A study of 45 bolts of carpet showed that their average length was 78.2 yards. The standard deviation of the population is 1.6 yard.Which of the following is the 95% confidence interval for the mean length per bolt of carpet?
A study of 45 bolts of carpet showed that their average length was 78.2 yards. The standard deviation of the population is 1.6 yard.Which of the following is the 95% confidence interval for the mean length per bolt of carpet?
A 77.8 < µ< 78.6
B 77.3 < µ< 79.1
C 78.0 < µ< 78.4
D 77.7 < µ< 78.7
Expert paper writers are just a few clicks away
Place an order in 3 easy steps. Takes less than 5 mins.