Confidence Interval Worksheet (6

A 90% confidence interval does not contain the specified mean length of 3.5. The specified mean length of 3.5 is in the center of a 90% confidence interval. Not enough information is available to answer the question. 3) A farmer wants to know whether a new fertilizer has increased the mean weight of his apples. With the old fertilizer, the mean weight was 4.0 ounces per apple. The weights of ... ................
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