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!
The specifications for the thickness of nonferrous washers are 1.0±0.04 mm. From process data, the distribution of the washer thickness is estimated to be normal with a mean of 0.98 mm and a standard deviation of 0.02 mm. The unit cost of rework is $0.10, and the unit cost of scrap is $0.15. For a daily production of 10,000 items:
(a) What proportion of the washers is conforming? What is the expected total daily cost of rework and scrap?
(b) In its study of constant improvement, the manufacturer changes the mean setting of the machine to 1.0 mm. If the standard deviation is the same as before, what is the expected total daily cost of rework and scrap?
(c) The manufacturer is trying to improve the process and reduces its standard deviation to 0.015 mm. If the process mean is maintained at 1.0 mm, what is the percent decrease in the expected total daily cost of rework and scrap compared to that of part (a)?
36% of women consider themselves fans of professional baseball. You randomly select six women and ask each if she considers herself a fan of professional baseball.
Checking the output by almost continuous sampling since the abnormal condition began. What is the probability that in a sample of 10 pieces: Exactly 5 will be defective?
In a shipment of 20 televisions, 5 are defective. If 2 television sets are randomly selected and tested without replacement, what is the probability that both are defective?
If each item is supposed to have a value within 35 ± 10, what is your estimate of the percentage of items that will fall within this specification?
A manufacturer of batteries is considering three new battery designs. An attempt was made to determine whether the mean lifetime in hours is the same for each of the three designs.
Does it seem to you that people tend to be absent more on some days of the week than on others?
a researcher reports that the correlation between age and physical health of adults over 50 is -.69. one can conclude
Multiple choice questions based on multiple regression - Find the coefficient of determination for the above model
Explain why researchers do not use random samples. How are they able to generalize their results?- The standard deviation of a sampling distribution is called the _________ and the mean is called the __________.
What is the prior probability the bid will be successful (i.e.. prior to receiving the request for additional information)?
which a correlation analysis or regression analysis could contribute to a better decision. The situation can be from a work, of general interest, or experienced in private life.
a. Construct a point estimate of the proportion of items returned for the population of sales transactions at the Houston store. b. Construct a 95% confidence interval for the porportion of returns at the Houston store.
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