|
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 of profit (in $1000s) for the next quarter.
b. Compare the three-period moving average forecast with the exponential smoothing forecast using α = 0.3. Which appears to provide the better forecast based on MSE?
In: Statistics and Probability
****ANSWERS ARE GIVEN BUT MUST SHOW ALL WORK; PLEASE (NO EXCEL OR SPSS)*****
----------------------------------------------------------------------
1. To answer this question, refer to the following hypothetical data collected using replicated measures design.
|
Subject |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
Pre |
50 |
49 |
37 |
16 |
80 |
42 |
40 |
58 |
31 |
21 |
|
Post |
56 |
50 |
30 |
25 |
90 |
44 |
60 |
71 |
32 |
22 |
A. In a two-tailed test of H 0 using α=0.05, what is p(obtained) for the results shown? *Hint: "two-tailed" means the same thing as nondirectional. ANSWER = 0.0216
B. What would you conclude regarding H0 using a = 0.05 2-tail? ANSWER = Since the p-value (0.0216) < α=0.05, we reject the null hypothesis H
----------------------------------------------------------------------
2. Conduct a one-way ANOVA on the following data.
|
Group 1 |
4 |
9 |
10 |
|
Group 2 |
11 |
11 |
10 |
|
Group 3 |
1 |
6 |
4 |
What is your conclusion (use an alpha)? ANSWER= Reject H0
----------------------------------------------------------------------
3. Given the following data:
|
Variable B |
|||
|
Variable A |
1 |
2 |
3 |
1 |
5 |
4 |
4 |
|
2 |
6 |
9 |
|
|
1 |
3 |
7 |
|
|
4 |
1 |
5 |
|
|
2 |
3 |
4 |
|
2 |
6 |
6 |
5 |
|
2 |
7 |
7 |
|
|
3 |
4 |
5 |
|
|
3 |
3 |
4 |
|
|
2 |
3 |
8 |
|
A) What is the value of F crit for the column effect (variable b ) *Hint: don't forget to evaluate a numerator (for variable B and denominator df within) ANSWER = 3.40
B) Given the following data, what is the value of the SS total? ANSWER = 121.8667
In: Math
Kellie a developmental psychologist measured the number of errors twenty teenagers made in a driving simulator while talking on their cellphones.
Here are the data [1, 2, 5, 2, 1, 3, 1, 4, 1, 2, 1, 25, 1, 4, 1, 40, 1, 2, 1, 1]
6) Calculate the mean, median and mode for this set of data.
7) Which measure of central tendency most accurately describes Kellie’s data? Briefly explain why.
In: Statistics and Probability
|
No. |
Date |
Account Titles and Explanation |
Debit |
Credit |
|---|---|---|---|---|
| (1) | Apr. 30 |
enter an account title to close revenue account on April 30 |
enter a debit amount |
enter a credit amount |
|
enter an account title to close revenue account on April 30 |
enter a debit amount |
enter a credit amount |
||
|
(To close revenue account) |
||||
| (2) | Apr. 30 |
enter an account title to close expense accounts on April 30 |
enter a debit amount |
enter a credit amount |
|
enter an account title to close expense accounts on April 30 |
enter a debit amount |
enter a credit amount |
||
|
enter an account title to close expense accounts on April 30 |
enter a debit amount |
enter a credit amount |
||
|
enter an account title to close expense accounts on April 30 |
enter a debit amount |
enter a credit amount |
||
|
enter an account title to close expense accounts on April 30 |
enter a debit amount |
enter a credit amount |
||
|
(To close expense accounts) |
||||
| (3) | Apr. 30 |
enter an account title to close net income or loss on April 30 |
enter a debit amount |
enter a credit amount |
|
enter an account title to close net income or loss on April 30 |
enter a debit amount |
enter a credit amount |
||
|
(To close net income / (loss)) |
||||
| (4) | Apr. 30 |
enter an account title to close dividends on April 30 |
enter a debit amount |
enter a credit amount |
|
enter an account title to close dividends on April 30 |
enter a debit amount |
enter a credit amount |
||
|
(To close dividends) |
eTextbook and Media
List of Accounts
Attempts: 1 of 3 used
(b)
Post the closing entries to Income Summary and Retained Earnings. (Post entries in the order of journal entries were recorded in the previous part of the question.)
|
Income Summary |
|||
|---|---|---|---|
|
select an option (1)(2)(3)(4)Bal.Total |
enter a debit amount |
select an option (1)(2)(3)(4)Bal.Total |
enter a credit amount |
|
select an option (1)(2)(3)(4)Bal.Total |
enter a debit amount |
select an option (1)(2)(3)(4)Bal.Total |
enter a credit amount |
|
select an option (1)(2)(3)(4)Bal.Total |
enter a debit balance |
select an option (1)(2)(3)(4)Bal.Total |
enter a credit balance |
|
Retained Earnings |
|||
|
select an option (1)(2)(3)(4)Bal.Total |
enter a debit amount |
select an option (1)(2)(3)(4)Bal.Total |
enter a credit amount |
|
select an option (1)(2)(3)(4)Bal.Total |
enter a debit amount |
select an option (1)(2)(3)(4)Bal.Total |
enter a credit amount |
|
select an option (1)(2)(3)(4)Bal.Total |
enter a debit balance |
select an option (1)(2)(3)(4)Bal.Total |
enter a credit balance |
In: Accounting
If Salem and Lynn were to trade belts and pens, what is the range of possible prices for a pen?
Belts Pens
Salem 18 24
Lynn 18 36
a. 1/2 of a belt to 3/4 of a belt per pen
b. 3/4 of a belt to 1 belt 1 belt per pen
c. 1 belt to 2 belts per pen
d. 4/3 belts to 2 belts per pen
In: Economics
A process contains eight virtual pages on disk and is assigned a fixed allocation of four-page frames in the main memory. The following page trace occurs: 1, 0, 2, 2, 1, 7, 6, 7, 0, 1, 2, 0, 3, 0, 4, 5, 1, 5, 2, 4, 5, 6, 7, 6, 7, 2, 4, 2, 7, 3, 3, 2, 3, 4
(a) Show the successive pages residing in the four frames using the LRU replacement policy. Compute the hit ratio in the main memory. Assume that the frames are initially empty.
(b) Repeat part (a) for the FIFO replacement policy.
(c) Compare the two hit ratios and comment on the effectiveness of using FIFO to approximate LRU with respect to this particular trace.
In: Computer Science
1.Take simultaneously 4 cards out of a standard deck of 52. Recall that in such a deck there are exactly 4 Aces and exactly 4 Kings. Let A = At least 2 of the cards taken are Aces and B = At least 2 of the cards taken are Kings.
Referring to the events A and B from the previous question we have:
A A and B are independent
B The contrary of A implies B
C P(A and B)<.1
D A and B are incompatible
2.
Consider a sample space S, a probability P on S, and 7 independent events denoted A^1, A^2, ..., A^7 included in S. Which of the following is NOT true?
A A^1, A^2, A^6 are independent
B The contrary of A^2 and the contrary of A^5 are independent
C A^3, the contrary of A^4 and the contrary of A^7 are pairwise independent
D At least 2 of the 7 given events are incompatible
In: Statistics and Probability
Develop a C program for matrix multiplication focusing on using malloc and pointers WITHOUT USING BRACKETS [] !!
* DO not use [ ] 'brackets', focus on using malloc, calloc, etc...
Program will ask user for the name of the text file to be
read
Read the datafile with format:
1
2
1
1 2
3
4
So the first three lines will represent m, n, p (Matrix A: m x n
||| Matrix B: n x p), follwing are the two matrices.
Representing:
A = |1 2| B = |3|
|4|
------------------------------------------------
example input and output:
Matrix A contents:
1 2
3 4
5 6
Matrix B contents:
7 8
9 10
11 12 13 14
Matrix A * B is:
29 32 35 38
65 72 79 86
101 112 123 134
The datafile read for this example is:
3
2
4
1 2
3 4
5 6
7 8 9 10
11 12 13 14
In: Computer Science
For each of the following situations, find the utility maximizing basket.
a) I=60 , px = 1, py = 9, u(x,y) = 7x^(1/4)y^(3/4)
b) I = 40, px = 8, py = 4, u(x,y) = 8x^2 + 3y^2
c) I = 100, px = 4, py = 5, u(x,y) = 2x+5y
d) I = 9, px = 18, py = 3, u(x,y) = 5xy-15x
e) I = 60, px = 1, py = 2, u(x,y) = 4x^(1/2)+2y
In: Economics
SEC Fillings:
Listed below are items that may or may not require the filing of an
SEC form. For each item ibelow, select the appropriate form from
the list provided. A selection may be used once, more than once, or
not at all.
|
|
In: Accounting