Post your written answers as a Word document with inserted pictures/plots and explanations as needed. 1. The sample below was collected to analyze the relationship between the duration of pregnancy (gestational age] and the birth weight of babies. Gestational Birth Age (wks) Weight (gm) 1 34.7 1895 2 36.0 2030 3 29.3 1440 4 40.1 2335 5 35.7 3090 5 42.4 3927 7 40.3 3260 8 37.3 2690 9 40.9 3255 10 38.3 2920 11 30.5 3430 12 41.4 3657 13 39.7 3685 14 39.7 3345 15 41.1 3260 16 38.0 2680 17 38.7 2005 Use Minitab to analyze that relationship: Make a scatterplot Calculate the Correlation Coefcient Make a linear regression plot and regression equation 0000 Interpret the results 2. Use the attached data sheet height.XL5 i, to analyze correlation and to develop regression equations describing the relationships between a person's height and weight. Make separate regression lines for men and women. 3. Below is the data for the optical densities observed during the analysis of solutions with 5 different concentrations of API [OD1 and OD2 are two measurements for the same solution). Conc, ODI 0D2 mg! L 5 0.126 0.098 '10 0.208 0.194 25 0.5 15 0.492 50 0.996 1.201 100 1.960 2.090 Using Minitab, develop a regression equation for the relationship of Mean DD (need to calculate it rst!) versus concentration of API and make a plot showing the data and the regression line. Show 95% condence intervals for that regression line. I Make the same plot but show 95% prediction intervals for that regression line. I What can you say about the ability to use that line as a calibration line for the analysis of future samples with unknown concentrations of the same API