Network Solutions just introduced a new, fully automated manufacturing plant that produces 1,500 wireless routers per day with materials costs of $50 per router and no other costs. The average number of days a router is held in inventory before being sold is 54 days. In addition, they generally pay their suppliers in 27 days, while collecting from their customers after 26 days.
How much would working capital be reduced if they stretched their payments to suppliers from 27 days to 47 days?
In: Finance
Consider the following data on price ($) and the overall score for six stereo headphones tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from 0 (lowest) to 100 (highest).
| Brand | Price ($) | Score |
|---|---|---|
| A | 180 | 74 |
| B | 150 | 73 |
| C | 95 | 63 |
| D | 70 | 58 |
| E | 70 | 40 |
| F | 35 | 28 |
Find the value of the test statistic. (Round your answer to three decimal places.)_____
Find the p-value. (Round your answer to four decimal places.)
p-value = ____
2.-Test for a significant relationship using the F test. Use α = 0.05.
Find the value of the test statistic. (Round your answer to two decimal places.)_____
Find the p-value. (Round your answer to three decimal places.)
p-value = ____
What is your conclusion?
Reject H0. We conclude that the relationship between price ($) and overall score is significant.
Do not reject H0. We conclude that the relationship between price ($) and overall score is significant.
Reject H0. We cannot conclude that the relationship between price ($) and overall score is significant.
Do not reject H0. We cannot conclude that the relationship between price ($) and overall score is significant.
(c)Show the ANOVA table for these data. (Round your p-value to three decimal places and all other values to two decimal places.)
| Source of Variation |
Sum of Squares |
Degrees of Freedom |
Mean Square |
F | p-value |
|---|---|---|---|---|---|
| Regression | |||||
| Error | |||||
| Total |
In: Statistics and Probability
- Identify at least three characteristics that Tardigrada share with members of the phylum Arthropoda?
- Identify at least two ways that they differ from members of the phylum Arthropoda.
- What is cryptobiosis and what advantage does it confer on an organism?
- Arthropods represent the cumulation of evolutionary development in the protostomes. identify at least three characteristics that contribute to their success. Briefly, explain the selective advantage of each.
In: Biology
For the past
112112
years, a certain state suffered
2828
direct hits from major (category 3 to 5) hurricanes. Assume that this was typical and the number of hits per year follows a Poisson distribution. Complete parts (a) through (d).
(a) What is the probability that the state will not be hit by any major hurricanes in a single year?
The probability is
1-The number of hits to a website follows a Poisson process. Hits occur at the rate of
1.0 per minute1.0 per minute
between 7:00 P.M. and
99:00
P.M. Given below are three scenarios for the number of hits to the website. Compute the probability of each scenario between
8 : 27 P.M.8:27 P.M.
and
88:3535
P.M. Interpret each result.
(a) exactly fivefive
(b) fewer than fivefive
(c) at least fivefive
2-Determine the required value of the missing probability to make the distribution a discrete probability distribution. x P(x) 3 0.35 0.35 4 ? 5 0.16 0.16 6 0.27 0.27 P(4) =
In: Statistics and Probability
As per the records, the data of subjects with Alzheimer’s disease roughly follow normal distribution with
mean age of 80 years and standard deviation 16 years.
a. What is the probability that a subjects’ age is between 63 and 78 years?
b. What is the probability that a subjects’ age is between 74 and 97?
c. What is the probability that a subjects’ age is less than 80?
In: Statistics and Probability
What is the probability that the woman has a diastolic blood pressure between 60 and 90 mmHg?
1. Suppose you have a variable X~N(8, 1.5).
Among females in the US between 18 and 74 years of age, diastolic blood pressure is normally distributed with mean µ=77mmHg and standard deviation σ=11.6mmHg
Note- 0.87 was not correct
In: Statistics and Probability
Where does all that Halloween candy go? The October 2004 issue of Readers' Digest quoted that "86% of parents admit taking Halloween candy from their children's trick-or-treat bags." The source of information was the National Confectioners Association. Suppose that 25 parents are interviewed. What is the probability that 20 or more took Halloween candy from their children's trick-or-treat bags? (Give your answer correct to three decimal places.)
In: Statistics and Probability
In: Operations Management
A regional airline transfers passengers from small airports to a larger regional hub airport. The airline data analyst was assigned to estimate the revenue ( in thousands of dollars) generated by each of the 22 small airports based on two variables: the distance from each airport ( in miles) to the hub and the population ( in hundreds) of the cities in which each of the 22 airports is located. The data is given in the following table.
Airport revenue distance population
1 233 233 56
2 272 209 74
3 253 206 74
4 296 232 78
5 268 125 73
6 296 245 54
7 276 213 100
8 235 134 98
9 253 140 95
10 233 165 81
11 240 234 52
12 267 205 96
13 338 214 96
14 243 183 73
15 252 230 55
16 269 238 91
17 242 144 64
18 233 220 60
19 234 170 60
20 450 170 240
21 340 290 70
22 200 340 75
In: Statistics and Probability
1) Table 17-30 Imagine a small town in which only two residents, Abby and Brad, own wells that produce safe drinking water. Each week Abby and Brad work together to decide how many gallons of water to pump. They bring water to town and sell it at whatever price the market will bear. To keep things simple, suppose that Abby and Brad can pump as much water as they want without cost so that the marginal cost is zero. The weekly town demand schedule and total revenue schedule for water is shown in the table below:
|
Quantity |
Price |
Total Revenue |
|
0 |
$12 |
$0 |
|
1 |
$11 |
$11 |
|
2 |
$10 |
$20 |
|
3 |
$9 |
$27 |
|
4 |
$8 |
$32 |
|
5 |
$7 |
$35 |
|
6 |
$6 |
$36 |
|
7 |
$5 |
$35 |
|
8 |
$4 |
$32 |
|
9 |
$3 |
$27 |
|
10 |
$2 |
$20 |
|
11 |
$1 |
$11 |
|
12 |
$0 |
$0 |
Discuss the difference between the monopoly outcome and the Nash equilibrium.
2)
Table 17-32
Suppose that Angelina and Brad own the only two professional
photography stores in town. Each must choose between a low price
and a high price for senior photo packages. The annual economic
profit from each strategy is indicated in the table
below:
Angelina
Low price High price
Brad |
Low price | Angelina’s profit = $20,000 Brad’s profit = $20,000 |
Angelina’s profit = $4,000 Brad’s profit = $23,000 |
| High price | Angelina’s profit = $25,000 Brad’s profit = $5,000 |
Angelina’s profit = $22,000 Brad’s profit = $22,000 |
Refer to Table 17-32. Is there a Nash equilibrium? If so, describe it.
In: Economics