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Heavy bread? The mean weight of loaves of bread produced at the bakery is supposed to be 1 pound. You are the supervisor of quality
- Heavy bread? The mean weight of loaves of bread produced at the bakery is supposed to be 1 pound. You are the supervisor of quality control at the bakery, and you are concerned that the new employees are producing loaves that are to light. Suppose we take a random sample of 40 loaves and find the mean weight is 0.975 pound with a standard deviation of 0.4 pound. Create / interpret a 95% confidence interval for the mean weight of loaves of bread produced at the bakery.
- From the confidence interval, should you be concerned the loaves of bread are not meeting the 1 pound standard?
- How many loaves of bread would we need to sample in order to cut the margin of error in half?
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