Direction: Solve the following problem. Illustrate the Standard Normal Curve. State your conclusion in not less than three (3) sentences in every item. Note: Two diagrams shall be shown for each problem requirements. - The first diagram shows the Normal Curve for X, where the specific X values are indicated and the required area is shaded. - The second diagram shows the corresponding Standard Normal Curve that is, the normal Curve of Z , with the equivalent 2 score '5 indicated and the required area are also shaded. PROBLEM The hourly wage of 500 skilled workers is found to approximate a Normal Distribution. The average hourly wage, u is computed to be P 100 with a standgggfeviation. ii of 10. B. Find the ntT'i'FiBer of workers whose hourly wages are 30% 1. Greater than or equal to P115 2. From P75 to P 118 3. Greater than or equal to P 85 4. Less than or equal to 113 B. Find : 40% 1. The minimum hourly wage of the upper 10% of workers (that is with the highest wages) 2. The maximum hourly wage of the lowest 20% of workers (that is, with the lowest wages)