make service calls to repair furnaces and air conditioning units in homes. Tom Fry, the owner,
would like to know whether there is a difference in the mean number of service calls they make
per day. A random sample of 40 days last year showed that Larry Clark made an average of 4.77
calls per day, with a standard deviation of 1.05 calls per day. For a sample of 50 days George Murnen made an average of 5.02 calls per day, with a standard deviation of 1.23 calls per day. At the .05 significance level, is there a difference in the mean number of calls per day between the two employees? What is the p-value?
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