Question

Florida Institute of Technology Chemical Engineering CHE-4284/CHE-5292 Industrial Safety Summer 2019 Homework #2 [Due: Monday, June 3, 2019] Problem 1: One hundred ind ividuals are tested for skin irritation because a specific dose of "Softycream. The responses are recorded on a scale from 0 to 10, with 0 indicating no response and 10 indicating a high response. The number of individuals exhibiting a specific response is given in the folowing table: Response Individuals Affected 0 2 1 7 2 12 3 16 4 17 5 16 6 12 7 8 8 5 3 10 Total 100 Determine: 1.1. Plot a histogram of the number of individuals affected versus the response. 1.2. Detemine the mean and the standard deviation. 1.3. Find the normal distribution equation for the 100 individuals affected. 1.4. Plot the normal distribution on the histogram of the original data. Problem 2 A report on the new medication "Cure-It-All" gives results on a group of individuals of different age and gender The age range was 18-60. The aim medication was administered orally in pils. The pills were prepared varying the amount of the active ingredient "Ife elgood. The data reported is given as follows: Dose of "Ifeelgood" (mg/L) Number of Individuals Number Affected 10.5 49 43 43 7.5 50 45 5.4 23 3.7 49 17 48 4. 2.4 0 48 Determine: 2.1. Calculate the percentage of individuals affected by each dose of lfeelgood". Plot a Response versus Dose" curve for this study. (% affected versus dose) (Use Excel) What do you conclude from the plot in 2.2.? 2.2 2.3. MEPdeF 05/30/2019