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: Many recent changes have affected the real estate market. A study was undertaken to determine customer satisfaction from real estate deals. Suppose that before the changes, the average customer satisfaction rating, on a scale of 0 to 100, was 77. A survey questionnaire was sent to a random sample of 50 residents who bought new plots after the changes in the market were instituted, and the average satisfaction rating for this sample was found to be 84; the sample standard deviation was found to be s = 28. Use an α of your choice, and determine whether statistical evidence indicates a change in customer satisfaction. If you determine that a change did occur, state whether you believe customer satisfaction has improved or deteriorated.
question a researcher believes that the percentage of people who exercise in california is greater than the national
i have been quoted 55 by another site can you beat that
What are the differences between predictive and prescriptive studies in nursing research.
Is the z value positive or negative? Explain why it should be positive or negative.
Construct a 95% confidence interval for, the difference between the mean number of commercials aired during prime time by the first network and the mean number of commercials aired during prime time by the second network.
Determine the least-squares regression line for predicting fuel consumption on the basis of flying time.- Determine and interpret the coefficients of correlation and determination.
The university had information for all students showing that 3900 of the 5000 graduates were state residents. Is a confidence interval appropriate for this situation? If so, compute the appropriate interval. If not, explain why not.
The pet-drug market is growing very rapidly. Before new pet drugs can be introduced into the market place, they must be approved by the U.S. Food and Drug Administration.
A person decides to take a telephone survey of 40 families in the 721-exchange area (sometimes referred to as prefix). You want an excellent representation of all subscribers in the exchange area.
Use the proportion of placebo takers who had heart attacks, which was .017, to explain the difference between a population parameter and a sample statistic.
A buyer suspects that the factory's claimed life of mean is 3000 hours for these light balls are too high. To check the claim, the factory tests 50 of these light balls and gets a mean lifetime of sample mean = 2988 hours and a standard deviation ..
4. Why is a 99% confidence interval wider than a 95% confidence interval?
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