The Wood Flooring Manufacturers Association claims a new product restores a high-gloss finish to old wood floors. A gloss meter is used to measure the shine of a wood floor, and a highgloss finish...

The Wood Flooring Manufacturers Association claims a new product restores a high-gloss finish to old wood floors. A gloss meter is used to measure the shine of a wood floor, and a highgloss finish should have a rating of at least 80 units. To check the manufacturer’s claim, the sealer and finish were applied to 35 randomly selected wood floors and the gloss was measured after each application dried. The sample mean gloss was
 Is there any evidence to suggest that the manufacturer’s claim is false? Use
 and compute the p value to draw a conclusion.

Arizona state procurement specifications for instant-dry highway paint indicate that the paint must dry in less than 60 seconds. A random sample of paint was obtained from a potential seller, and the drying time of each batch was carefully tested. Assume

a. Is there any evidence to suggest the mean drying time for this highway paint is less than 60 seconds? Use the p value to draw a conclusion.

 b. Using the results from part (a), do you believe there is overwhelming evidence to suggest the paint dries in less than 60 seconds? Why or why not?

 c. Carefully sketch a graph to illustrate the p value in this hypothesis test.