Determining confidence interval for mean weight

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Reference no: EM1318408

Q1) In our bakery, sample of 60 loaves of bread is found to have mean weight of 35 ounces with standard deviation of 1.21 ounces.

a) Using sample, determine a 98% confidence interval for mean weight of whole daily output.

b) Find out how large a sample must be taken to be 90% confident that sample mean is within 0.12 ounces of true mean weight of our bakery's loaves.

c) Would we be guilty of false advertising if we claimed a 2 lb. loaf

Q2) Given following information about statistical experiment determine value of E. Sample size = 64, s = 4.71, confidence level = 95%

a)1.154

b) 0.184

c) 0.380

d)1.332

Reference no: EM1318408

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