Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage...
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Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of 50 miles per gallon. You take a simple random sample of n = 30 hybrid vehicles and test their gas mileage. In this sample, the average is x = 47 miles per gallon with a standard deviation of s=5.5 miles per gallon. Is there enough evidence to support the advertised claim using a = 0.05? t-critical = +2.0452 μ = 50 n = 30 x = 47 S = 5.5 a = 0.05 Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of 50 miles per gallon. You take a simple random sample of n = 30 hybrid vehicles and test their gas mileage. In this sample, the average is x = 47 miles per gallon with a standard deviation of s=5.5 miles per gallon. Is there enough evidence to support the advertised claim using a = 0.05? t-critical = +2.0452 μ = 50 n = 30 x = 47 S = 5.5 a = 0.05
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Operations Management Managing Global Supply Chains
ISBN: 978-1506302935
1st edition
Authors: Ray R. Venkataraman, Jeffrey K. Pinto
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