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!
In a large department store a customer-complaints office handles an average of six complaints per hour about the quality of service. The distribution is Poisson.
a. What is the probability that in any hour exactly six complaints will be received?
b. What is the probability that more than 20 minutes will elapse between successive complaints?
c. What is the probability that fewer than 5 minutes will elapse between successive complaints?
d. The store manager observes the complaints office for a 30-minute period, during which no complaints are received. He concludes that a talk he gave to his staff on the theme "the customer is always right" has obviously had a beneficial effect. Suppose that, in fact, the talk had no effect. What is the probability of the manager observing the office for a period of 30 minutes or longer with no complaints?
a student asked to give a class demonstration of the use of an ordinary t-statistic confidence interval for comparing
A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a battery is normally distributed, with a mean of 56 months and a standard deviation of 6 months.
According to the U.S. Bureau of Labor Statistics, personal expenditures for entertainment fees and admissions averaged $349 per person in the Northeast and $420 in the West.- Construct and interpret the 99% confidence interval for the test.
Plot the power function of this testing procedure. Interpret the implications of the power function from the standpoint of both the department store and the television manufacturer.
Describe the given data show a seasonal effect using moving average method. Describe the data which show a seasonal effect.
Which is a possible value for the correlation of X and Y in the a) -0.75 b) 0 c) +1 d) +0.98
A researcher is interested in the effect of an electrolytic sports drink on the endurance of adolescent boys. A group of 30 boys is selected and half are given a treadmill endurance test while consuming the sports drink and the other half take the..
Give the interval of values that is likely to cover the true proportion of the population who would answer, "Yes, will be a time."
Explain and show exactly how you are getting the correct information from your data set and how you are computing the probabilty.
Use the Internet to find a website that shows an example or application correlation or regression in the area of your interest or in your profession. Discuss how correlation or regression was used and summarize your finding.
I am not understanding how to do this question as I am still trying to grasp an understanding of the material. I came across this question at the end of the chapter:
What test of significance did the researchers use? This can usually be found in a discussions section or reviewed in the methods section of a research article.
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