Answered step by step
Verified Expert Solution
Question
1 Approved Answer
J. A research team studied Y, the protein production of a laboratory animal, and how Y was affected by the dose of medicine. The research
J. A research team studied Y, the protein production of a laboratory animal, and how Y was affected by the dose of medicine. The research team sought choose a dosage to that E(Y) was minimized. They used five doses of medicine: 0, 1, 2, 3, and 4. They randomly assigned 16 animals to dosage 0, 16 to dosage 1, 16 to dosage 2, 16 to dosage 3, and 16 to dosage 4. They observed that the average values of Y' at each dosage were Yo. = 98.6, y1. = 89.0, yz. = 66.4, ya. = 58.6, and y4. = 42.4, where y, was the average of the observations taken with dosage i = 0,1,2,3,4, respectively. They also observed that so = 2246, s? = 1628, s? = 2064, s? = 1482, and s = 2566, where s was the unbiased estimate of the variance for the observations taken with dosage i = 0,1,2,3,4 respectively. They correctly calculated that y.. = 71.0 and that the average s/ was 1,997.2. The total sum of squares was 183,048.24. They also correctly calculated the values of the four contrasts. The coefficients of the linear contrast were -2, -1,0,1,2;, and Azin = -142.8. The coefficients of the quadratic contrast were 2, -1, -2, -1,2; and Quad = 1.6. The coefficients of the cubic contrast were - 1,2,0, -2,1; and cubic = 4.6. The coefficients of the quartic contrast were 1, -4,6, -4,1; and AQuartic = -51.0.9. Report the analysis of variance table for the linear regression of Y on dosage. Use the sum of squares due to the linear contrast as the sum of squares for the regression of Y on dosage. Test the null hypothesis that there is no linear association at the 0.10, 0.05, and 0.01 levels of significance. This question is worth 50 points
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started