Question: 2. Confidence Interval When trying to estimate the mean weight of garbage discarded by households in one week, we obtain these sample results: n 562,

2. Confidence Interval When trying to estimate the mean weight of garbage discarded by households in one week, we obtain these sample results: n 562, lb, s 5 12.46 lb. Knowing that the sample mean is an unbiased estimator of the population mean, we correctly conclude that our best estimate of is 27.44 lb. Why do we then need a confidence interval? What does the confidence interval tell us that is missing from the estimate of 27.44 lb?

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