Answer to Question #152043 in Statistics and Probability for JG

Question

According to 32 randomly selected customers at a Burger King restaurant, we found the service time for the drive-through has a mean of 181.3 sec with a standard deviation of 82.2 sec. According to another 45 randomly selected customers at a McDonald’s restaurant in the same area, we found the service time for the drive-through has a mean of 167.8sec with a standard deviation of 60.6sec.
a) Test if the average service time at McDonald’s is less than Burger King at 2% level of significance. (Use both critical value method and p-value method)
b) According to the result that you have in part a), which type of error could you possibly make? Describe such error with the context of the problem.

Answer 1

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