Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question: Frequently, natural process times are made up of several distinct stages. For instance, a manual task can be thought of as being comprised of individual motions (or "therbligs" as Gilbreth termed them). Suppose a manual task takes a single operator an average of one hour to perform. Alternatively, the task could be separated into 10 distinct six-minute subtasks performed by separate operators. Suppose that the subtask times are independent (i.e., uncorrelated), and assume that the coefficient of variation is 0.75 for both the single large task and the small subtasks. Such an assumption will be valid if the relative shapes of the process time distributions for both large and small tasks are the same. (Recall that the variances of independent random variables are additive.)
(a) What is the coefficient of variation for the 10 subtasks taken together?
(b) Write an expression relating the SCV of the original tasks to the SCV of the combined task.
(c) What are the issues that must be considered before dividing a task into smaller subtasks? Why not divide it into as many as possible? Give several pros and cons.
(d) One of the principles of JIT is to standardize production. How does this explain some of the success of JIT in terms of variability reduction?
For the horseshoe crab data, use a stepwise procedure to select a model for the probability of a satellite when weight, spine condition, and color (nominal scale) are the predictors. Explain each step of the process.
How can you use information about a person's values to help you relate more effectively to him or her?
Suppose we select a person at random from this collection of 1858 people. What is the probability that the person is liberal AND a Republican?
A survey conducted last year by my students in Business Studies found out that the average net income for Business graduates is $74,914. One of my current students queried the results and decided to repeat the research by taking a random sample of..
(a) Based on the sample of 19 students, what proportion of community college males live at home? (b) Find the probability that 16 or more out of 19 community college male students live at home, assuming that the proportion who live at home is 53%.
Suppose we select a student at random from this class. What is the probability that the person is a Human Ecology student?
Develop the estimated regression line. Jensen expects to use the machine 30 hours per week, develop a 95% prediction interval for the company's annual maintenance expense.
a. Does the data indicate a significant difference between the treatments at the .05 level of significance?
For testing H0; ? = 1 versus ? > 1, show that the problem is invariant under the group of transformations gc(x1, x2) = (cx1, cx2), c > 0
Women diagnosed with breast cancer whose tumors have not spread may be faced with a decision between two surgical treatments-mastectomy
Converting a two-sided P-value. You use statistical software to perform a significance test of the null hypothesis that two means are equal.
a simple random sample of size 100 is taken from a population. the population variance in unknown. the distribution of
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd