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Chicken Delight order delivery speed

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Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 82 were delivered within the promised time. At the 0.10 significance level, can we conclude that less than 90% of the orders are delivered in less than 10 minutes?

Please answer the questions using the excel file provided.

Questions are in excel spreadsheet , attached.

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https://brainmass.com/economics/principles-of-mathematical-economics/chicken-delight-order-delivery-speed-62978

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Chicken Delight order delivery speed is evaluated.

$2.19