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Evidence to suggest the marble floor is unsafe on rainy days

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Reference no: EM131747484

Question: Physical Sciences A floor slip tester is used to measure the safety of a floor by comparing the measured coefficient of static friction with accepted standards and guidelines. Several factors can affect floor safety, for example, dampness, polishes, and maintenance chemicals. A marble floor is consider safe if the coefficient of static friction is no greater than 0.5. A random sample of 50 rainy days was selected, and the coefficient of static friction for the marble floor was measured on each day. The resulting sample mean was 0.6. Is there any evidence to suggest the marble floor is unsafe on rainy days? Assume the underlying population standard deviation is 0.2 and justify your answer.

Reference no: EM131747484

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