"Shortbread Shalise" wants to market her new shortbread cookies in 20 oz. packages of 40 cookies each. She knows these delicious cookies should have a mean weight of 0.5 ounces. She also knows that the standard deviation should be 0.2887 ounces. She takes a sample of 100 cookies, and finds that the mean is x = 0.4278. She wants to test H0: μ = 0.5 Ha: μ ≠ 0.5 Find the associated P-value. Is the result significant at the 5% level (α = 0.05)? At the 1% level (α = 0.01)?