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) Do reading and TV viewing compete for leisure time? To determine, a communication specialist interviewed sample of 10 children regarding number of books they had read in the last year and number of hours they had spent watching TV on daily basis. Researcher was nice sufficient to give you following information:
i) Use alpha level. 05 to compute and interpret Pearson's r and to test whether it is important (using all your steps for hypothesis test).
ii) Use alpha level .05 to compute and interpret constant and slope and to test whether it is important (go through all of your steps of hypothesis testing). Standard error of b is .015.
books
tv hours
(x-xbar)
(y-ybar)
(x-xbar)2
y-ybar)2
(x-xbar)2(y-ybar)2
(x-xbar)(y-ybar)
0
3
-2.6
0.5
6.76
0.25
1.69
-1.3
7
1
4.4
-1.5
19.36
2.25
43.56
-6.6
2
-0.6
-0.5
0.36
0.09
0.3
-1.6
2.56
0.64
0.8
5
2.4
-2.5
5.76
6.25
36
-6
4
1.4
1.96
4.41
-2.1
0.4
0.16
0.04
0.2
-0.2
4.5
20.25
136.89
-11.7
1.5
-2.4
26
25
46.4
34.5
229.12
-29
Mean = 2.6
2.5
Then estimate demand again with a weighted moving average in which sales in the most recent year are given a weight of 2 and sales in the other two years are each given a weight of 1.
Probability based on normal distribution. Suppose among X has a normal distribution, and find the indicated probability.
Any value which is based on having measured a sample is called:
Determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.
At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
The resort's historical climate data suggests that the probability of a good winter with lots of snow during any given year is 40%.
Reading highway signs is not always easy, especially if your vision is imperfect. Vision in general tends to deteriorate with age. Two researchers conducted a study to determine if the distance at which a standard highway sign could be recognized ..
Recent actual and forecasted data for product XYZ is given in the following table.
What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?
A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.
We are interested in testing to find out whether the variance of the population is vitally more than 0.003
The results of the simple linear regression are provided below.
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