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 random sample of size n = 100 from a normal population with unknown mean and variance is to be used to test the null hypothesis, H0 : μ = 12, versus the alternative, H0 : μ /= 12. The observed sample standard deviation is s = 0.5.
(i) Determine the rejection region for α = 0.1, 0.05 and α = 0.01.
(ii) If the true population mean has shifted to μ = 11.9, determine the value of β corresponding to each of the rejection regions obtained in (i) and hence the power of each test. Comment on the effect that lowering α has on the corresponding values of β and power.
400 had college degrees, 100 were single, and 60 were single college graduates. The probability that an employee of the company is married and has a college degree is?
Independent random samples taken at two companies provide the following information regarding the anual salaries of the employees.
At the 0.05 level, and assuming a normal distribution for the weights, examine the possibility that the new procedure is actually no better than the old one.
Does this sample provide enough evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of the general population? Use a two-tailed test with α = .01.
A recent census of a small town in Michigan showed that 60% of the residents are male, 20% have college degrees, and 15% are both male and college graduates.
By using the fact that Martha believes the treatment will decrease the amount of time to fall asleep, describe the null and alternate hypotheses.
The sample yielded a mean content of 11.88 ounces, with a standard deviation of 0.24 ounces. Use a 0.05 level of significance and test to see if the machine is in perfect adjustment (perform all six steps of hypothesis testing, including p-values)..
Random sample of five North American adult is more than 7 hours a day? What is the probability that in random sample of 5 north American adults, all watch television more than 7 hours a day?
The four characters required for the passcode, the first must be a number,the 2nd and 3rd must be a number. how many different passcodes can you form?
what is the difference between significance level and a p-value? explain in
For the grand opening, an arena has selected 5 finalists, each of whom will win a season ticket located in one of 5 sections: The upper balcony, lower balcony, main floor, courtside, or a luxury box.
the rejection region of a hypothesis test is fgtf0.0511112.82 and the test statistic is f2.2644 at a level 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