a. Describe the sampling distribution for the sample mean. b. What is the standard error? c. What is the margin of error for 98% confidence?
Grandma Gertrude’s Chocolates, a family owned business, has an opportunity to supply its product for distribution through a large coffee house chain. However, the coffee house chain has certain specifications regarding cacao content as it wishes to advertise the health benefits (antioxidants) of the chocolate products it sells. In order to determine the
a. Describe the sampling distribution for the sample mean.
b. What is the standard error?
c. What is the margin of error for 98% confidence?
d. Based on the sample results, find the 98% confidence interval and interpret.
e. For a more accurate determination of the mean weight, the quality control inspectors wish to estimate it within 1% with 95% confidence. How many pieces of dark chocolate should they sample?
Step by step
Solved in 4 steps with 3 images