Question: A digital camcorder repair service has set a goal not to exceed an average of 5 working days from the time the unit is brought in to the time repairs are completed. A random sample of 12 repair records showed the following repair times (in days): 9, 2, 5, 1, 5, 4, 7, 5, 11, 3, 7, 2. At α = .05 is the goal being met? In addition, the problem states to do the following:

Using the ratio or interval numerical data from the data set provided, develop one research question from which you will formulate a research hypothesis (e.g. the goal is met or not met).

Describe the results of the hypothesis test of one population mean or population proportion. Be sure to include the following:

a) Formulate both a numerical and verbal hypothesis statement regarding your research issue.

b) Perform the five-step hypothesis test on data pertaining to the selected data.

c) Describe the results of your test, and explain how the findings from this hypothesis testing can be used to answer your research question.

d) Be sure to include your raw data tables and the results of the computation of your Z-test or T-test, using both graphical and tabular methods of displaying data and results.