Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost of a large plain pizz

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Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost of a large plain pizz

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Cost Of Pizzas A Pizza Shop Owner Wishes To Find The 95 Confidence Interval Of The True Mean Cost Of A Large Plain Pizz 1
Cost Of Pizzas A Pizza Shop Owner Wishes To Find The 95 Confidence Interval Of The True Mean Cost Of A Large Plain Pizz 1 (15.18 KiB) Viewed 11 times
Cost of Pizzas A pizza shop owner wishes to find the 95% confidence interval of the true mean cost of a large plain pizza. How large should the sample be if she wishes to be accurate to within $0.19? A previous study showed that the standard deviation of the price was $0.45. Round your final answer up to the next whole number. The owner needs at least a sample of pizzas.
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