Broken crackers. We dont like to find broken crackers when we open the package. How can
Chapter 0, Problem 21.3(choose chapter or problem)
Broken crackers. We dont like to find broken crackers when we open the package. How can makers reduce breaking? One idea is to microwave the crackersfor 30 seconds right after baking them. Breaks start as hairline cracks calledchecking. Assign 65 newly baked crackers to the microwave and another 65 to acontrol group that is not microwaved. After one day, none of the microwavegroup and 16 of the control group show checking.6 Give the 95% plus fourconfidence interval for the amount by which microwaving reduces the proportionof checking. The plus four method is particularly helpful when, as here, a count ofsuccesses is zero. Follow the four-step process as illustrated in Example 21.3.
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