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!
Q1) Stockbroker at Critical Securities reported that mean rate of return on a sample of 10 oil stocks was 12.6 percent with the standard deviation of 3.9%. Mean rate of return on a sample of 8 utility stocks was 10.9% with standard deviation of 3.5%. At 0.05 significance level, can we conclude that there is more variation in oil stocks?
2) Following hypotheses are given,
H0: s12 ≤ s22
H1: s12 > s22
Random sample of five observations from first population resulted in standard deviation of 12. A random sample of 7 observations from second population illustrated a standard deviation of 7. At 0.01 significance level, is there more variation in first population?
Q3) Research at University of Toledo indicates that 50% of students change their major area of study after their first year in the program. A random sample of 100 students in college of Business disclosed that 48 had changed their major area of study after their first year of program. Has there been a noteworthy decrease in proportion of students who change their major after first year in this program? Test at 0.05 level of significance.
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
Estimating the value of the population mean on the basis of the sample mean alone produces a(n):
Which of following statements would be right concerning a twotail test at 0.05 level of significance? We can conclude that average cottage cheese consumption in America is at least 0.705 pound more or less than 2.75 pounds per person per year.
The heights of young women are approximately normal with mean 65 inches and standard deviation 2.5 inches.
Determine the probability of randomly selecting a person graduating with Master's degree who didn't major in Education.
Compute a 3-month moving average forecast of demand for April through January (of the next year).
If you draw one ball from the urn what is the probability that it is blue or white?
Can one conclude at a level of significance of .01 that the new ball has improved his game?
What IQ score should one have in order to be eligible for Mensa?
We are interested in determining if the accident proportions differ between the two age groups:
Discuss possible study designs. Which of the designs would we use to test our research hypothesis?
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