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on excel and show workings Manufacturing companies strive to maintain production consistency, but it is often difficult for outsiders to tell whether they have succeeded.

on excel and show workings Manufacturing companies strive to maintain production consistency, but it is often difficult for outsiders to tell whether they have succeeded. Smarties claims that 10 % of the candies it produces are green and that bags are packed randomly. Their production controls can be checked by sampling bags of candies. Suppose bags containing about 280 candies are opened and the proportion of green candies is recorded. a) Explain why it's appropriate to use a Normal model to describe the distribution of the proportion of green candies they might expect in the 280-candy bag. b) Use the 68-95-99.7 Rule to describe how this proportion might vary from bag to bag. c) How would this model change if the bags contained even more candies

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