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Return follow the normal distribution. Refer to the table in Appendix B.1. a-1. Determine the z-values for 27 and 36 hours. (Negative answers should be indicated by a minus sign. Round the final answers to 1 decimal place.) 27 hours corresponds to z = 36 hours corresponds to z = 2.5 a-2. What percentage of the garages take between 31 hours and 36 hours to erect? (Round the final answer to 2 decimal places.) Percentage 0.49 * % b. What percentage of the garages take between 27 hours and 36 hours to erect? (Round the final answer to 2 decimal places.) Percentage 0.97 * % c. What percentage of the garages take 26.8 hours or less to erect? (Round the final answer to 2 decimal places.) Percentage 0.02 % d. Of the garages, 8% take how many hours or more to erect? (Round the final answer to 1 decimal place.) Hours 33.82