Te standard deviation of sample was 27 minutes using 005

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The management of ABC Industries is considering a new method of assembling its golf cart.  The present method requires 42.3 minutes, on the average, to assemble a cart.  The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes.  Using a 0.05 level of significance, can we conclude that the assembly time using the new method is faster? 

Reference no: EM13470481

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