Question
In: Statistics and Probability
Period Receipts 1 30172000 2 16916000 3 11794000 4 7862000 5 6354000 6 5222000 7 4106000...
| Period | Receipts |
| 1 | 30172000 |
| 2 | 16916000 |
| 3 | 11794000 |
| 4 | 7862000 |
| 5 | 6354000 |
| 6 | 5222000 |
| 7 | 4106000 |
| 8 | 3368000 |
| 9 | 2302000 |
| 10 | 2440000 |
| 11 | 2472000 |
| 12 | 2766000 |
| 13 | 2856000 |
| 14 | 2300000 |
| 15 | 1704000 |
| 16 | 1776000 |
| 17 | 1362000 |
| 18 | 1158000 |
| 19 | 1124000 |
Use the formula for the "best" trend model to forecast the time
series (Receipts) for x = t = 20.
Round the forecast to the nearest whole number.
Solutions
orchestra answered 2 years agoRelated Solutions
ID X Y 1 2 3 2 3 6 3 4 6 4 5 7 5...
ID
X
Y
1
2
3
2
3
6
3
4
6
4
5
7
5
8
7
6
5
7
7
6
7
8
8
8
9
7
8
10
12
11
Test the significance of the correlation coefficient.
Then use math test scores (X) to predict physics test scores
(Y). Do the following:
Create a scatterplot of X and Y.
Write the regression equation and interpret the regression
coefficients (i.e., intercept and slope).
Predict the physics score for each....
[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4...
[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4 6 5 4 5 3 7 5 5 4 2 6 5 6
6]
This is my dataset
Find mean, median, mode, variance, standard deviation,
coefficient of variation, range, 70th percentile,
3rdquartile of the data and skewness and define what
each of these statistics measure. For example, mean is a measure of
the central tendency, what about the rest?
Use Chebyshev’s rule to find...
[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4...
[4 5 5 2 4 4 6 3 3 7 5 3 6 3 4 4 6 5 4 5 3 7 5 5 4 2 6 5 6
6]
This is my dataset
Split the dataset in two equal parts. You have 30 datavalues.
If you split the data in two equal parts each part will contain 15
data values. Call the first part Y and second part
X.Draw scatter plot of the 2 datasets, X being on the horizontal...
Matrix A2= [1 2 3; 4 5 6; 7 8 9; 3 2 4; 6 5...
Matrix A2= [1 2 3; 4 5 6; 7 8 9; 3 2 4; 6 5 4; 9 8 7]
Note: TA2 is defined to be a linear transformation that maps
any vector x to A2* x. That is TA2 = A2*x. Also the range of the
Linear transformation represented by A2 is the same as the column
space of A2.
l) Find a basis for the null(TA2).
m) Find nullity of A2, TA2 and A2tA2.
n) Find rank(A2), rank(A2t),...
Returns on stock X are listed below: Period 1 2 3 4 5 6 7 Stock...
Returns on stock X are
listed below:
Period
1
2
3
4
5
6
7
Stock X
8%
0%
3%
-2%
5%
12%
7%
What is the
(population) standard deviation of the data?
Please specify your
answer in decimal terms and round your answer to the nearest
thousandth (e.g., enter 12.3 percent as 0.123).
Note that the correct
answer will be evaluated based on the full-precision result you
would obtain using Excel.
Consider the following time series: Period 1, 2, 3, 4, 5, 6, 7, 8 Demand 15,...
Consider the following time series:
Period 1, 2, 3, 4, 5, 6, 7, 8
Demand 15, 17, 14, 7, 10, 12, 7, 5
A. using a trend projection, forecast the demand for period
9
b. calculate the MAD for this forecast
SHOW ALL WORK! DO NOT USE EXCEL OR PHSTAT!
($ thousands) Period 0 1 2 3 4 5 6 7 Net cash flow –14,000 –1,624...
($ thousands)
Period
0 1 2 3 4 5 6 7
Net cash flow –14,000 –1,624 3,087 6,463 10,674 10,125 5,897
3,409
Present value at 22% –14,000 –1,331 2,074 3,559 4,818 3,746
1,788 847
Net present value = 1,502 (sum of PVs)
Restate the above net cash flows in real terms. Discount the
restated cash flows at a real discount rate. Assume a 22% nominal
rate and 8% expected inflation. NPV should be unchanged at +1,502,
or $1,502,000. (Negative answers...
4) Let ? = {2, 3, 5, 7}, ? = {3, 5, 7}, ? = {1,...
4) Let ? = {2, 3, 5, 7}, ? = {3, 5, 7}, ? = {1, 7}. Answer the
following questions, giving reasons for your answers.
a) Is ? ⊆ ??
b)Is ? ⊆ ??
c) Is ? ⊂ ??
d) Is ? ⊆ ??
e) Is ? ⊆ ??
5) Let ? = {1, 3, 4} and ? = {2, 3, 6}. Use set-roster notation
to write each of the following sets, and indicate the number of
elements in...
6. Let A = {1, 2, 3, 4} and B = {5, 6, 7}. Let f...
6. Let A = {1, 2, 3, 4} and B = {5, 6, 7}. Let f = {(1, 5),(2,
5),(3, 6),(x, y)} where x ∈ A and y ∈ B are to be determined by
you. (a) In how many ways can you pick x ∈ A and y ∈ B such that f
is not a function? (b) In how many ways can you pick x ∈ A and y ∈
B such that f : A → B...
Step 2 Data Set A x 1 2 3 4 5 6 7 y 7 7...
Step 2
Data Set A
x
1
2
3
4
5
6
7
y
7
7
7
9
9
9
10
Data Set B
x
1
2
3
4
5
6
7
8
9
10
11
y
4
6
6
6
8
9
9
9
10
10
10
Step 2
Find the equation for the least-squares line, and graph the
line on the scatter plot.
Find the sample correlation coefficient r and the
coefficient of determination r2. Is r
significant?...
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