11-7. An article in the Tappi Journal (March 1986) presenteddata on green liquor Na₂S concentration (in grams per liter)and paper machine production (in tons per day). The data (readfrom a graph) follow:y 40825xyX4283000.549890112,46[155]895LIA4643915 960 99053 52448904891054 57 581010 1012 1030 1050(a) Fit a simple linear regression model with y = green liquorNa,S concentration and x = production. Find an estimateof o². Draw a scatter diagram of the data and the resultingleast squares fitted model.(b) Find the fitted value of y corresponding to x = 915 and theassociated residual.(c) Find the mean green liquor Na,S concentration when theproduction rate is 960 tons per day.

Given that,The data set is given as follows:…

Answered: 11-7. An article in the Tappi Journal…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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1. Consider the following data collected regarding infant blood pressure, age, and birth weight: i 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Birth weight in oz. (x1) 135 120 100 105 130 125 125 105 120 90 120 95 120 150 160 125 Age in days (x2) 3 4 3 2 4 5 2 3 5 4 2 3 3 4 3 3 Systolic Blood Pressure mmHg (y) 89 90 83 77 92 98 82 85 96 95 80 79 86 97 92 88 a. Fit a model to predict SBP from birth weight and Age. Present the equation of the least-squares regression line. b. Interpret the beta coefficients for Birth weight and Age. c. Are Birth weight and/or Age significantly associated with SBP at the alpha = 0.05 level? d. Interpret the corresponding 95% confidence intervals for both Birth weight and Age.
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