Mathematics, 06.12.2019 02:31 falabit
Adigital 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. click here for the excel data file (a) h0: μ ≤ 5 days versus h1: μ > 5 days. at α = .05, choose the right option. reject h0 if tcalc > 1.796 reject h0 if tcalc < 1.796 a bcalculate the test statistic.
(c-1) the null hypothesis should be rejected.
true
false
(c-2) the average repair time is longer than 5 days.
true
false
(c-3) at \alpha = .05 is the goal being met?
yes
no
Answers: 2
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