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A supermarket is redesigning it’s checkout lanes. Design A has a sample size of 50, sample...

A supermarket is redesigning it’s checkout lanes. Design A has a sample size of 50, sample mean of 4.1 minutes, and sample standard deviation of 2.2 minutes. Design B has a sample size of 50, sample mean of 3.5 minutes, and sample standard deviation of 1.5 minutes. At the 0.05 level of significance, determine if their is evidence that the checkout times of the two systems differ

Math   Statistics-And-Probability   
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Conclusion : there is insufficient evidence to conclude that the checkout times of the the two systems differ.

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