3. A restaurant with delivery services claims that at least 90% of its orders are delivered within 45 minutes after the time the order is placed. The manager fears this is no longer the case. 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 on time? Ho: H₂: Zcrit = Zstat = tail, a= pvalue=
3. A restaurant with delivery services claims that at least 90% of its orders are delivered within 45 minutes after the time the order is placed. The manager fears this is no longer the case. 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 on time? Ho: H₂: Zcrit = Zstat = tail, a= pvalue=
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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