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!
For the X,Y data below, compute:
a. r and determine if it is significantly different from zero.
b. the slope of the regression line and test if it differs significantly from zero
c. the 95% confidence interval for the slope.
X Y
4 6
3 7
5 12
11 17
10 9
14 21
I have for A:
R=nΣxy - (Σx)( Σy)/sqrt n(Σx^2)-(Σx)^2*sqrt n(Σy^2) - (Σy)^2
R = 6(676) - (47)(72)/sqrt6 (467) - (47)^2) * sqrt6 (1040_ - (72)^2
R = 4056 - 3384/sqrt2802 - 2209 * sqrt6240 - 5184
R = 672/sqrt593 * sqrt1056
R= 672/24.352 * 32.496
R = 672/791.346
R = 0.849, yes the P value is 0.032 which is smaller than 0.05 indicating that R is significantly different than zero.
Which measures of central tendency will always have but one (1) value for a set data?
The number of sit-ups that a person can do in one minute, both before and after a physical fitness course was recorded. The data is shown below for 10 randomly selected participants.
As we can say there is 5.5 percent chance of seeing the current policy having an effect on smog in the results we observed from natural sampling variation.
Measure of average you might be inclined to report and in what sense each value can be considerd typical. (A) as vice president responsible for collective burgaining.(B) as the president the employee burgaining unit.
If 100 stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen?
Find a 95% confidence interval for the population mean mercury concentration in the blood of adults who eat fish regularly.
Name four types of information bias. Name at least one way in which each type of bias can be prevented or minimized.
A government agency takes a random sample of income tax returns to obtain information on the average income of people in different occupations.
Examining more than one independent variable. Would using several t-tests be appropriate test to use? If not, what would appropriate test be and why?
SAT versus ACT, continued. Refer to the previous exercise. Find the predicted value of ACT for each observation in the data set
The group consists of 180 married couples. A random split into teams of 3 is chosen, with all possible splits equally likely.
Based on the information provided, you are to complete the appropriate 2014 individual tax form and any supporting schedules/forms for the Grants.
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