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Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time...

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 92 were delivered within the promised
time. At the .10 significance level, can we conclude that more than 90% of the orders are
delivered in less than 10 minutes?

Math   Statistics-And-Probability   
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