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!
1. In a population of normally distributed measurements, the mean equals 70. Say you took a random sample size of 16 from this population and found a sample mean of 80 and a sample standard deviation of 14. Is this sample mean significantly different from population using alpha equals .05?
T=
One or two tailed test?
T critical value=
Ho=
H1=
Reject or fail to reject Ho?
2. An advertising executive hypothesized the use of clay puppets in a TV ad would be rated as more interesting than humans, by a test audience. She randomly assigned subjects into two test groups. Test her hypothesis at alpha= 0.5. Here are her findings:
Clay pupped mean= 94, S=3, N=9 . Human actors mean=92, S=4, N=8
What size samples are needed for a statistical power of 70 percent in detecting a difference of 5 percent between the estimated percentages of recent CD buyers.
write the null for this the average hemoglobin at admission less than 12.5. is the mean enrollment hemoglobin for males
The advertising firm of McMann and Tate has put out bids for two separate contracts. Based on past experience, they believe that they have a 0.7
edward and his friends cannot go outside when it is sunny because they are vampires. edwards hometown forks washington
A car rental company has determined that the probability a car will need service work in any given month is 0.2. The company has 900 cars.
One of the three has not been invited even once in five meetings. What is the probability of such an occurrence if the choice is indeed random?
The quantity of the sample size has a significant influence on the standard error. Since n is the denominator of the standard error formula, as n increases, the standard error increases. The more data that you have, the more accurate you can be.
Use the Kruskal-Wallis test to determine whether there is any evidence to suggest that at least two populations of distance traveled are different.
In checking a random sample of 400 emergency room patients, a board member finds that 35% of those treated were not true emergency cases. Using an appropriate hypothesis test and the 0.05 level, evaluate the administrator's statement.
The price of a first-class stamp in 1970 was 8 cents, whereas in 2002 it was 37 cents. The Consumer Price Index for 1970 was 38.8.
The following regression equation and correlation coefficient were calculated using minitab for the bivariate data age of men and their weight.
If they must form an ethics subcommittee of 4 members, how many different subcommittees are possible?
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