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Hypothesis Testing - Hotel Room Service

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The Palace Hotel believes it's customers may be waiting too long for room service. The hotel operations manager knows that the time for room service orders is normally distributed and he sampled 10 room service orders during a 3-day period and timed each ( in minutes) as follows:

23 23
15 12
26 16
19 18
30 25

The operations manager believes that only 10% of the room service orders should take longer than 25 minutes if the hotel has good customer service. Does the hotel room service meet this goal?

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Hypotheses: H0: p = 0.10 vs. H1: p < 0.10
Level of Significance: &#61537; = 5%
Decision rule: Reject the null hypothesis if p-value is less than ...

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