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!
A sample of 100 widgets from the Acme production line shows that the average lifespan of these parts is 900 hours. The standard deviation of production has been 200 hours historically and is known to be normally distributed.
a) Give a point estimate of lifespan of all production.
b) Form an interval estimate for the students using a 99% confidence interval
c) Interpret the results you obtained in question }p
d) Assuming the sigma of 200 was actually the standard deviation for the sample, recalculate the interval estimate. Discuss how this changed your result from that in part b.
Z score on comparison distribution for sample score and your conclusion. Suppose that all population are normally distributed.
Based on this information, if department employee selects random sample of n = 9 containers, determine probability that mean volume for sample will be greater than 1.01 gallons?
Describe your answer to a person who has never had a course in statistics.
If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?
What percent of sales representatives earn more than $42,000 per year?
Based on this sample, is Moe correct in his assertion? Write up formal commentary of results of your test.
What is the probability that none are a commercial success?
He measures the heights of 25 men from this century and finds the mean and standard deviation for his sample.
A restaurant monitors its customer's complaints, With information, which of the following is a Pareto chart of the data?
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Find out the Expected value of the perfect information for the given problem. Given the subsiquent cost tree, illustrate what is the expected outcome.
Explain the distribution of mean of samples of size 15.
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