9700 POINTS PLEASE HELP I have 9700 points and will give all
9,700 POINTS, PLEASE HELP!!!! I have 9,700 points and will give all to whoever can do this for me in the next 15 min. I can;t figure out how o offer more points now, but if you tell me that woudl be great. I know how to after and promise I willWe have 15 min to complete this. Please show enough work to prove you know your stuff, but I really dont actually need work, just correct answers. Please hurry, and I will reward with tons of points. THANK YOU!!!!
Question 1
Section: 12-1 One-Way Analysis of Variance
In a one-way analysis of variance test in which the levels of the factor being analyzed are randomly selected from a large set of possible factors, the design is referred to as:
a fixed-effects design.
a random-effects design.
an undetermined results design.
a balanced design.
10 points
Question 2
Section: 12-1 One-Way Analysis of Variance
Respond to the following questions using this partially completed one-way ANOVA table (shown below). How many different populations are being considered in this analysis?
Source of Variation
SS
df
MS
F-ratio
Between Samples
1,745
Within Samples
______
240
Total
6,504
246
5
8
7
6
10 points
Question 3
Section: 14-3 Uses for Regression Analysis
When using regression analysis for descriptive purposes, which of the following is of importance?
The size of the regression slope coefficient.
The sign of the regression slope coefficient.
The standard error of the regression slope coefficient.
All of the above.
10 points
Question 4
Section: 12-3 Two-Factor Analysis of Variance With Replication
Examine the following two-factor analysis of variance table (shown below). Determine if interaction exists between factor A and factor B. Use alpha = 0.05.
Source
SS
df
MS
F-Ratio
Factor A
162.79
4
Factor B
28.12
AB Interaction
262.31
12
Error
________
___
Total
1,298.74
84
Fail to reject H0. Conclude that there is not sufficient evidence to indicate interaction exists between Factor A and Factor B.
Reject H0. Conclude that there is sufficient evidence to indicate interaction exists between Factor A and Factor B.
Fail to reject H0. Conclude that there is sufficient evidence to indicate interaction exists between Factor A and Factor B.
Reject H0. Conclude that there is not sufficient evidence to indicate interaction exists between Factor A and Factor B.
10 points
Question 5
Section: 12-1 One-Way Analysis of Variance
The State Transportation Department is thinking of changing its speed limit signs. It is considering two new options in addition to the existing sign design. At question is whether the three sign designs will produce the same mean speed. To test this, the department has conducted a limited test in which a stretch of roadway was selected. With the original signs up, a random sample of 30 cars was selected and the speeds were measured. Then, on different days, the two new designs were installed, 30 cars each day were sampled, and their speeds were recorded. Suppose that the following summary statistics were computed based on the data: x-bar1 = 62.1, x-bar2: 58.94, x-bar3: 71.2. The appropriate test to conduct to determine if the population means are equal is:
Hartley\'s F-max test.
one-way analysis of variance.
three sample t-test.
randomized complete block analysis of variance.
10 points
Question 6
Section: 12-3 Two-Factor Analysis of Variance With Replication
Which of the following is the minimum number of required replications per cell for a two-factor ANOVA design if you plan to test for interactive effects between factors A and B?
3
1
2
5
10 points
Question 7
Section: 15-2 Using Qualitative Independent Variables
Golf handicaps are used to allow players of differing abilities to play against one another in a fair match. Recently a sample of golfers was selected in an effort to develop a model for explaining the difference in handicaps. One independent variable of interest is the number of rounds played per year. Another is whether or not the player is using an \"original\" name brand club or a copy. In recent years, a number of smaller golf club manufacturers have attempted to copy major golf club designs and sell \"copies\" of original clubs such as the Big Bertha by Calloway. To incorporate the type of club used, which of the following methods could be used?
Create a dummy variable called \"Club Used\" and code it \"O\" for original and \"C\" for copy.
Create a dummy variable called \"Club Used\" and code it 1 for copy and 0 for original.
Create a dummy variable called \"Club Used\" and code it 1 for original and 0 for copy.
Either B or C would work.
10 points
Question 8
Section: 15-2 Using Qualitative Independent Variables
A decision maker is considering including two additional variables into a regression model that has as the dependent variable, Total Sales. The first additional variable is the region of the country (North, South, East, or West) in which the company is located. The second variable is the type of business (Manufacturing, Financial, Information Services, or Other). Given this, how many additional variables will be incorporated into the model?
2
6
8
9
10 points
Question 9
Section: 12-1 One-Way Analysis of Variance
An Internet service provider is interested in testing to see if there is a difference in the mean weekly connect time for users who come into the service through a dial-up line, DSL, or cable Internet. To test this, the ISP has selected random samples from each category of user and recorded the connect time during a week period. The following data were collected (shown below). Assuming that the test is to be conducted at a 0.01 level of significance, what would the critical value be for this test?
Dial Up
DSL
Cable
19.2
40.6
39.5
17.7
40
42.3
17.2
41.5
47
18.9
30.5
45.4
26.9
46.8
41.1
22.6
43.2
31.2
39.9
41.9
49.3
F = 1.93
F = 3.555
t = 2.8784
F = 6.013
10 points
Question 10
Section: 12-2 Randomized Complete Block Analysis of Variance
A test is conducted to compare three different income tax software packages to determine whether there is any difference in the average time it takes to prepare income tax returns using the three different software packages. Ten different person\'s income tax returns are done by each of the three software packages and the time is recorded for each. Given this format and testing using an alpha level equal to 0.05, the critical value associated with the primary hypothesis test is:
3.555
2.456
19.385
4.256
10 points
Question 11
Section: 14-2 Simple Linear Regression Analysis
A regression analysis between sales (Y) and advertising (X) (both in dollars) resulted in the following equation: y-hat = 100 + 2000X. The above equation implies that an:
increase of $1 in advertising is correlated with an increase of $2,000 in sales.
increase of $1 in advertising is correlated with an increase of $2 in sales.
increase of $1 in advertising is correlated with an increase of $100 in sales.
increase of $1 in advertising is correlated with an increase of $2100 in sales.
| A. | a fixed-effects design. | |
| B. | a random-effects design. | |
| C. | an undetermined results design. | |
| D. | a balanced design. |
Solution
1. C. an undetermined results design because random desgin is used when treatment is not known and balanced desgin when model is linear, fixed desgin where treatments is a population as a whole.
2. C. 7
because 246-240=6=k-1
k=7
3. D all of the above
4. A.Fail to reject H0. Conclude that there is not sufficient evidence to indicate interaction exists between Factor A and Factor B.
5.B one-way analysis of variance.
in this we comparing the mean
6. C 2 because we have k-1 df
7. D. Either B or C would work
Create a dummy variable called \"Club Used\" and code it 1 for copy and 0 for original.
Create a dummy variable called \"Club Used\" and code it 0 for copy and 1 for original.
8. B 6
9 A F-test = 1.93
10. B 2.456
11. C increase of $1 in advertising is correlated with an increase of $100 in sales.





