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Danvers-Hilton Resort Hotel states that its weekend guest bill has been on average $1,200 for the...

  1. Danvers-Hilton Resort Hotel states that its weekend guest bill has been on average $1,200 for the last 5 years with a standard deviation of $200. The CEO believes that this year the value of weekend bills has changed and he hires you to statistically test whether this is true. You collect a sample of 100 weekend bills finding an average amount of $1,230. You state the following hypothesis:

H0 : µ = 1200

Ha : µ ≠ 1200

  1. Conduct a hypothesis test using a critical-value approach allowing for 5% error.
  2. Conduct a hypothesis test using a p-value approach allowing 5% error.
  3. According to the statistical analysis you have performed above, what is your answer to the CEO?
Math   Statistics-And-Probability   
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