2. Earlier in this chapter, we discussed that iron supplements are popular in part because they raise oxygen levels in our bodies, and increased oxygen levels help us feel more energetic. We also said that consuming an iron supplement with a drink high in Vitamin C enhances the effects of the iron supplement. A researcher has a sample of 40 people randomly assigned to two factors: iron supplement and Vitamin C consumption. Specifically, people were randomly assigned either to take an iron supplement or not to take an iron supplement. In addition, people were also randomly assigned either to consume a glass of orange juice (which is high in Vitamin C) or not to consume a glass of orange juice. The researcher uses a pulse oximetry to measure oxygen levels as the dependent variable (to keep the calculations simple, we are using intentionally hypothetical numbers for oxygen levels).The data is presented below. Carry out the analysis of variance using SPSS and determine whether there are any main effects or an interaction. Make a line graph of the results and interpret the pattern of the results.
|
Iron Supplement |
||
|
Took Supplement |
Did not take Supplement |
|
|
Ingested Vitamin C |
9 |
1 |
|
7 |
3 |
|
|
8 |
3 |
|
|
8 |
3 |
|
|
9 |
2 |
|
|
8 |
3 |
|
|
9 |
3 |
|
|
7 |
2 |
|
|
6 |
2 |
|
|
8 |
1 |
|
|
Did Not Ingest Vitamin C |
4 |
3 |
|
5 |
2 |
|
|
5 |
4 |
|
|
6 |
2 |
|
|
6 |
2 |
|
|
7 |
2 |
|
|
6 |
2 |
|
|
5 |
3 |
|
|
5 |
4 |
|
|
4 |
2 |
|
In: Math
Details of Notes Receivable and Related Entries
Gen-X Ads Co. produces advertising videos. During the current year ending December 31, Gen-X Ads received the following notes:
| Date | Face Amount | Term | Interest Rate | ||||
| 1. | Apr. 10 | $75,000 | 60 | days | 4 | % | |
| 2. | June 24 | 16,800 | 30 | days | 6 | ||
| 3. | July 1 | 72,000 | 120 | days | 6 | ||
| 4. | Oct. 31 | 72,000 | 60 | days | 9 | ||
| 5. | Nov. 15 | 54,000 | 60 | days | 6 | ||
| 6. | Dec. 27 | 180,000 | 30 | days | 4 | ||
Required:
Assume 360 days in a year.
1. Determine for each note (a) the due date and (b) the amount of interest due at maturity, identifying each note by number.
| Note | (a) Due Date | (b) Interest Due at Maturity | |
| (1) | $ | ||
| (2) | |||
| (3) | |||
| (4) | |||
| (5) | |||
| (6) | |||
2. Journalize the entry to record the dishonor of Note (3) on its due date. If an amount box does not require an entry, leave it blank or enter "0".
3. Journalize the adjusting entry to record the accrued interest on Notes (5) and (6) on December 31.
| Dec. 31 | |||
4. Journalize the entries to record the receipt of the amounts due on Notes (5) and (6) in January. If an amount box does not require an entry, leave it blank or enter "0".
| Note 5 | |||
| Note 6 | |||
Check My Work3 more Check My Work uses remaining.
In: Accounting
The following table shows the ranks given by two judges to the performance of six finalists in a men’s figure skating competition:
| Skater | A | B | C | D | E | F |
| Judge 1 | 3 | 5 | 1 | 6 | 2 | 4 |
| Judge 2 | 1 | 5 | 2 | 6 | 3 | 4 |
a. Specify the competing hypotheses to determine whether the Spearman rank correlation coefficient is different from zero.
H0: ρS = 0; HA: ρS ≠ 0
H0: ρS < 0; HA: ρS ≥ 0
H0: ρS > 0; HA: ρS ≤ 0
b-1. Calculate the Spearman rank correlation coefficient rS. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)
b-2. Interpret the Spearman rank correlation coefficient rS.
Strong positive relationship.
Strong negative relationship.
Weak positive relationship.
Weak negative relationship.
c. The p-value for the test is found to be equal to 0.064. At the 5% significance level, does the Spearman rank correlation coefficient differ from zero?
No, since we do not reject H0.
Yes, since we reject H0.
No, since we reject H0.
Yes, since we do not reject H0.
In: Statistics and Probability
In C++ Create an abstract class called Shape Shape should have the following pure virtual functions: getArea() setArea() printArea() Create classes to inherit from the base class Circle Square Rectangle Both implement the functions derived from the abstract base class AND must have private variables and functions unique to them like double Radius double length calculateArea() Use the spreadsheet info.txt read in information about the circle, rectangle, or square
text file:
circle 3.5
square 3
rectangle 38 36
circle 23
rectangle 2 13
square 12
square 24
square 1
square 8
square 27
rectangle 22 13
rectangle 22 18
rectangle 14 27
circle 11
circle 18
square 5
example output:
Name Area
***********************
circle 1 38.47 square 1 9.00 rectangle 1 1368.00 circle 2 1661.06 rectangle 2 26.00 square 2 144.00 square 3 576.00 square 4 1.00 square 5 64.00 square 6 729.00 rectangle 3 286.00 rectangle 4 396.00 rectangle 5 378.00 circle 3 379.94 circle 4 1017.36 square 7 25.00 *********************** Total Area 7098.82
In: Computer Science
1.A company is analyzing two mutually exclusive projects, E and F, whose cash flows are shown below:
| Years | 0 | 1 | 2 | 3 | 4 |
| Cash Flow E | -$1,100 | $900 | $350 | $50 | $10 |
| Cash Flow F | -$1,100 | $0 | $300 | $400 | $850 |
The company's cost of capital is 12 percent, and it can get an
unlimited amount of capital at that cost. What is the regular IRR
(not MIRR) of the better project? (Hint: Note that the better
project may or may not be the one with the higher IRR.)
|
12.53% |
||
|
17.46% |
||
|
13.88% |
||
|
13.09% |
2.Compute the IRR for Project X and note whether the firm should accept or reject the project with the cash flows shown below if the appropriate cost of capital is 10%.
| Time: | 0 | 1 | 2 | 3 | 4 | 5 | ||
| Cash Flow: | -1300 | 400 | 400 | 400 | 400 | 400 |
|
16.32%; accept |
||
|
16.32%; reject |
||
|
13.44%; accept |
||
|
13.26%; reject |
3. Compute the NPV for Project X and accept or reject the project with the cash flows shown below if the appropriate cost of capital is 9 percent.
| Year | 0 | 1 | 2 | 3 | 4 | 5 |
| Cash Flow | -$1000 | -$75 | $100 | $100 | $0 | $2000 |
|
$-639.96 |
||
|
$360.04 |
||
|
$392.44 |
||
|
$486.29 |
In: Finance
|
Researchers at the Mayo Clinic have studied the effect of sound levels on patient healing and have found a significant association (louder hospital ambient sound level is associated with slower postsurgical healing). Based on the Mayo Clinic's experience, Ardmore Hospital installed a new vinyl flooring that is supposed to reduce the mean sound level (decibels) in the hospital corridors. The sound level is measured at five randomly selected times in the main corridor. |
| New Flooring | Old Flooring |
| 39 | 47 |
| 44 | 50 |
| 40 | 51 |
| 40 | 53 |
| 45 | 48 |
| (a-1) |
Does the evidence convince you that the mean sound level has been reduced? Select the appropriate hypotheses. |
| a. | H0: μ1 – μ2 ≥ 0 vs. H1: μ1 – μ2 < 0 |
| b. | H0: μ1 – μ2 = 0 vs. H1: μ1 – μ2 ≠ 0 |
| c. | H0: μ1 – μ2 ≤ 0 vs. H1: μ1 – μ2 > 0 |
|
| (a-2) | At α = 0.05, what is the decision rule? Assume equal variances. |
| a. | Reject the null hypothesis if tcalc > –1.86 (8 d.f.) |
| b. | Reject the null hypothesis if tcalc < –1.86 (8 d.f.) |
|
|
(a-3) |
Calculate the test statistic. (Round your answer to 4 decimal places. Input the answer as a positive value.) |
| Test statistic |
| (a-4) | At α = .05, is the mean sound level reduced? |
| (Click to select) Reject / Do not reject H0, the mean (Click to select) has been / has not been reduced.? |
| (b-1) |
At α = .05, has the variance changed? Choose the correct hypothesis. |
| a. | H0: σ12 / σ22 = 1vs. H1: σ12 / σ22 ≠ 1. |
| b. | H0: σ12 / σ22 ≠ 1vs. H1: σ12 / σ22 = 1. |
|
| (b-2) | At α = .05, what is the decision rule? |
| a. | Reject H0 if Fcalc < 9.60 or Fcalc > .1042. (d.f.1 = 4, d.f.2 = 4.) |
| b. | Reject H0 if Fcalc > 9.60 or Fcalc < .1042. (d.f.1 = 4, d.f.2 = 4.) |
|
|
(b-3) |
What is the test statistic? (Round the test statistic value to 4 decimal places.) |
| Test statistic |
| (b-4) | At α = .05, has the variance changed? |
| (Click to select) Reject / Do not reject H0, the variance (Click to select) has / has not been changed.? |
In: Math
In: Finance
A town contains 4 people who repair televisions. If 5 sets break down, and each
repairer is equally likely to be called, what is the probability that
(1) exactly 2 of the repairers are called?
(2) exactly 3 of the repairers are called?
In: Statistics and Probability
Five persons A, B, C, D, and E are seated at random in a row of seats numbered 1, 2, 3, 4, and 5.
a) Find the probability that A is seated on seat 2.
b) FInd the probability that A and B are not seated with each other.
In: Math
Write an algorithm to input a number n, then calculate 13 +2 3 + 33 + ... + n3, the sum
of the first n cubic numbers, and output the result.
2-Construct a trace table of the algorithm in question 1 with input n=4.
In: Computer Science