Reference no: EM1396022
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 (in days)
9,2,5,1,5,4,7,5,11,3,7,2.
Ho: u< or equal to 5 days versus H1: u> 5 days
(a) Should you reject the Ho if t > 1.796?
(b) Calcualte the t-value
(c) Should the null hypothesis be rejected?
(d) Is the average repair time longer than 5 days?
(e) At a=.05 is the goal being met?
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