Stats Solutions

(Step-by-Step) The following data set represents the time (in minutes) for a random sample of phone calls made by employees at a company: 7.5 2.0 12.1 8.8 9.4

Question: The following data set represents the time (in minutes) for a random sample of phone calls made by employees at a company: 7.5 2.0 12.1 8.8 9.4 7.3 1.9 2.8 7.0 7.3

  1. Find the sample mean.
  2. Find the sample standard deviation.

c. Use the t-distribution to construct a 90% confidence interval for the

population mean and interpret the results. Assume the population of the data set is normally distributed.

Price: $2.99
Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


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