Reference no: EM131372220
The data points in a sample of size 9 are 34, 51, 40, 38, 47, 50, 52, 44, 37.
a. If you can take the deviations of these data from any number you select, and you want to minimize the sum of the squared deviations (SSD), what number would you select? What is the minimized SSD? How many degrees of freedom are associated with this SSD? Calculate the mean squared deviation (MSD) by dividing the SSD by its degrees of freedom. (This MSD is an unbiased estimate of population variance.)
b. If you can take the deviations from three different numbers you select, and the first number is to be used with the first four data points to get the deviations, the second with the next three data points, and the third with the last two data points, what three numbers would you select? What is the minimized SSD? How many degrees of freedom are associated with this SSD? Calculate MSD.
c. If you can select nine different numbers to be used with each of the nine data points, what numbers would you select? What is the minimized SSD? How many degrees of freedom are associated with this SSD? Does MSD make sense in this case?
d. If you are told that the deviations are to be taken with respect to 50, what is the SSD? How many degrees of freedom are associated with this SSD? Calculate MSD.
|
What is total number of degrees of freedom for deviations
: Three random samples of sizes, 30, 48, and 32, respectively, are collected, and the three sample means are computed.- What is the total number of degrees of freedom for deviations from the means?
|
|
Design a four-dwell cam to move a follower of mass
: Calculate and plot the dynamic force and torque. Assume damping of 0.18 times critical. Repeat for a form-closed cam. Compare the dynamic force, torque, and natural frequency for the form-closed design and the force-closed design.
|
|
Iatrogenic and nosocomial diseases to be medical errors
: 1. Would you consider iatrogenic and nosocomial diseases to be medical errors? 2. Write one paragraph indicating how biology, anatomy, physiology, and chemistry relate to pathophysiology.
|
|
What should be initial bargaining position of school board
: The annual contract negotiations between the Pleasant Ridge Board of Education and the Pleasant Ridge Classroom Teachers Association (PRCTA) are due to begin July 1, one week from now. What should be the initial bargaining position of the school boar..
|
|
How many degrees of freedom are associated with the ssd
: If you are told that the deviations are to be taken with respect to 50, what is the SSD? How many degrees of freedom are associated with this SSD? Calculate MSD.
|
|
Write a matlab function that solves a quadratic equation
: Write a MATLAB function that computes both the factorial and double factorial for a positive odd integer - Write a MATLAB function that solves a quadratic equation.
|
|
Dealing with medical professionals
: Prevailing wisdom reinforces the fact that working in U.S. health care administration in the 21st Century requires knowledge of the various aspects of health laws as they apply to dealing with medical professionals.
|
|
Find the undamped and damped natural frequencies
: Find the undamped and damped natural frequencies and the value of critical damping for the system(s) assigned.
|
|
Figure out the amounts of the two missing checks
: Your bank sends you a summary statement, giving the average amount of all checks you wrote during the month.- Using this and the information provided by the bank, can you figure out the amounts of the two missing checks?
|