Question
In: Statistics and Probability
the following are the monthly sales (in thousands of dollars) for a company in four regions...
the following are the monthly sales (in thousands of dollars) for a company in four regions of the country.
|
North |
East |
South |
West |
|
34 28 18 24 |
47 36 30 38 44 |
40 30 41 29 |
21 30 24 37 23 |
Does the data suggest that there is a difference in the mean monthly sales among the different regions?
Solutions
orchestra answered 3 years agoRelated Solutions
The following data gives the monthly sales (in thousands of dollars) for different advertising expenditures (also...
The following data gives the monthly sales (in thousands of
dollars) for different advertising expenditures (also in thousands
of dollars) and sales commission percentages.
Sales
245 138 352
322 228
275 560
366
Advertising
16.5
18.0 22.3
18.4 19.0 19.5
30.0 18.6
Commission
10.5 2.0
4.0
3.5 4.5
1.8
9.0 8.5
What amount of sales would...
The data shown below contains the monthly sales (in thousands of dollars) at a local department...
The data shown below contains the monthly sales (in thousands of
dollars) at a local department store for each of the past 24
months. Copy the data to Excel, perform a runs test, and compute a
few autocorrelations to determine whether this time series is
random. Give your conclusion by referring to the results of your
runs test and autocorrelations (no need to try to attach the Excel
output in this text box, just mention the specific values you refer...
Milner Brewing Company experienced the following monthly sales (in thousands of barrels) during 2010: Jan. Feb....
Milner Brewing Company experienced the following monthly sales
(in thousands of barrels) during 2010:
Jan.
Feb.
Mar.
Apr.
May
June
100
92
112
108
116
116
Please fill the blanks in the table below to answer these three
questions: (round to the nearest integers)
(a) Develop 2-month
moving average forecasts for May through July.
(b) Develop 4-month
moving average forecasts for May through July.
(c) Develop
forecasts for February through July using the exponential smoothing
method (with w = .5). Begin...
A firm reported the following income statement (all figures arein thousands of dollars):Net Sales...
A firm reported the following income statement (all figures are
in thousands of dollars):Net Sales1,100-operating costs200-depreciation & amortization230=Operating Income (EBIT)?-interest76=Earnings Before Taxes (EBT)?-taxes81=Net Income?What is the operating income of this firm?NOTE: the - and = in red have been added to serve as a hint on
how to compute each item of interest.A firm reported the following income statement (all figures are
in thousands of dollars):Net Sales1,550-operating costs200-depreciation & amortization220=Operating Income (EBIT)?-interest77=Earnings Before Taxes (EBT)?-taxes70=Net Income?What is the net income...
The chart below lists the sales in thousands of dollars based on the advertising budget for...
The chart below lists the sales in thousands of dollars based on
the advertising budget for that quarter. The regression equation is
Y' = 4.073 + 0.8351X. What is the correlation
coefficient?
Advertising ($hunderds)
Sales ($thousands)
0
5
3
5.5
4
7
5
7.8
6
9
7
11
Multiple Choice
0.775
0.844
0.926
1.00
The following data shows the quarterly profit (in thousands of dollars) made by a particular company...
The following data shows the quarterly profit (in thousands of
dollars) made by a particular company in the past 3 years.
Year
Quarter
Profit ($1000s)
1
1
45
1
2
51
1
3
72
1
4
50
2
1
49
2
2
45
2
3
79
2
4
54
3
1
42
3
2
58
3
3
70
3
4
56
a. Use α = 0.3 to
compute the exponential smoothing values for the time series.
Compute MSE and the forecast...
The following data shows the quarterly profit (in thousands of dollars) made by a particular company...
The following data shows the quarterly profit (in thousands of
dollars) made by a particular company in the past 3 years.
Year
Quarter
Profit ($1000s)
1
1
45
1
2
51
1
3
72
1
4
50
2
1
49
2
2
45
2
3
79
2
4
54
3
1
42
3
2
58
3
3
70
3
4
56
a. Use α = 0.3 to compute the
exponential smoothing values for the time series. Compute MSE and
the...
Data on advertising expenditures and revenue (in thousands of dollars) for the Four Seasons Restaurant follow....
Data on advertising expenditures and revenue (in thousands of
dollars) for the Four Seasons Restaurant follow. Advertising
Expenditures Revenue 1 20 2 33 4 44 6 40 10 52 14 53 20 54
a. Let X equal advertising expenditures and Y equal revenue.
Complete the estimated regression equation below (to 2 decimals). y
=( )+( )x b. Compute the following (to 1 decimal). SSE ( ) SST ( )
SSR ( )MSR ( ) MSE ( )
c. Test whether...
The payoff table below provides the profits (in thousands of dollars) for each of four alternatives...
The payoff table below provides the profits (in thousands of
dollars) for each of four alternatives in each of three
supplies.
Supplies
Alternative
S1
S2
S3
A1
112
67
-26
A2
82
85
101
A3
85
72
80
A4
-50
90
110
Suppose that the probabilities for the supplies above are
P(S1) = 0.6,
P(S2) = 0.2, and
P(S3) = 0.1.
Which alternative should be selected under Bayes’ Rule?
What is the expected value of perfect information for this
decision?
The following data give the annual incomes (in thousands of dollars) and amounts (in thousands of dollars) of life insurance policies for eight persons.
The following data give the annual incomes (in thousands of dollars) and amounts (in thousands of dollars) of life insurance policies for eight persons.(a) At the 98% confidence level, test whether annual income and the amount of life insurance policies are independent.(b) Find the attained significance level.(c) State any assumptions you have made in solving the problem.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- For all questions, please show all work and/or provide explanations. The Kd of the insulin receptor...
- Baked potatoes are normally wrapped in aluminum foil. How does this affect the cooling of the...
- What is the process to obtain biomass production
- A labor market has 50,000 people in the labor force. Each month, a fraction p of...
- A road with a radius of 72 m is banked so that a car can navigate...
- 1) If you had not dried the solid, would the calculated percent yield have been higher,...
- Two structures of alanine can be drawn that have a net charge of zero, but the...
ADVERTISEMENT