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Conduct a test of hypothesis about a population mean

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Reference no: EM131927715

MacBurger Restaurants follows a normal distribution with a mean of 3 minutes and a standard deviation of 1 minute. At the Warren Road MacBurger, the quality-assurance department sampled 50 customers and found that the mean waiting time was 2.75 minutes. At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes? References Conduct a test of hypothesis about a population mean. 

  • State whether the decision rule is true or false: Reject H0 if z < - 1.65 True False True / False Conduct a test of hypothesis about a population mean. 
  • What is your decision regarding H0? Do not reject H0 Reject H0

Reference no: EM131927715

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