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) Sample size of 31 is utilized to test Ho:u=50 vs Ha:u is not equal 50
Given mean x=48.2 and std=5.1
i) Determine the calculated value of the test statistic?
ii) What distribution does test statistic have when null hypothesis is true?
iii) Is alternative hypothesis one-tailed or two-tailed?
iv) What is the p-value?
Q2) Researcher is interested in evaluating noise levels in decibels at area urban hospitals. She wishes to be 99% confident that her estimate is right. If standard deviation is 4.8, how large a sample is required to get desired information to be correct within 0.60 decibels? Illustrate all work.
A random sample of 15 paired observations has a correlation of -.46. Can we conclude that the correlation in the population is less than zero? Use the .05 significance level.
Below is a normal plot of residuals from a regression. Does the plot indicate any problems with the assumption that the residuals are Normally distributed
If p denotes the p -value of the corresponding hypothesis test, which of the following is true?
Make up a scatter diagram with 10 dots for each of the following situations:
What are the expected value and variance of the following probability distribution?
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
Some researchers have conjectured that stem-pitting disease in peach tree seedlings might be controlled with weed and soil treatment. An experiment was conducted to compare peach tree seedling growth with soil and weeds treated with one of two her..
Solve linear program graphically
Determine the mean number of times the machine was used per day.
A study sponsored by American Express Co. and the French government tourist office found that old American stereotypes about French unfriendliness weren't true.
It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. These data should be analyzed with a
Obtain the simple linear regression equation, then analyze the residuals by (a) constructing a histogram
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