1. The owner of Showtime Movie Theaters, Inc. would like to estimate weekly gross revenue as a function of advertising expenditures. Historical data for a sample of eight weeks follow.
|
Weekly Gross |
Television |
Newspaper |
Radio |
|
Revenue |
Advertising |
Advertising |
Advertising |
|
($1000s) |
($1000s) |
($1000s) |
($1000s) |
|
96 |
5 |
1.5 |
0.3 |
|
90 |
2 |
2 |
0.2 |
|
95 |
4 |
1.5 |
0.3 |
|
92 |
2.5 |
2.5 |
0.1 |
|
95 |
3 |
3.3 |
0.4 |
|
94 |
3.5 |
2.3 |
0.4 |
|
94 |
2.5 |
4.2 |
0.3 |
|
94 |
3 |
2.5 |
0.3 |
SHOW ALL WORK
In: Statistics and Probability
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. Suppose that at five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are recorded below. Wilderness District 1 2 3 4 5 January 140 123 123 64 78 April 102 111 104 88 61 Does this information indicate that the peak wind gusts are higher in January than in April? Use α = 0.01. Solve the problem using the critical region method of testing. (Let d = January − April. Round your answers to three decimal places.) test statistic = critical value = Interpret your conclusion in the context of the application. Reject the null hypothesis, there is sufficient evidence to claim average peak wind gusts are higher in January. Fail to reject the null hypothesis, there is sufficient evidence to claim average peak wind gusts are higher in January. Reject the null hypothesis, there is insufficient evidence to claim average peak wind gusts are higher in January. Fail to reject the null hypothesis, there is insufficient evidence to claim average peak wind gusts are higher in January. Compare your conclusion with the conclusion obtained by using the P-value method. Are they the same? We reject the null hypothesis using the critical region method, but fail to reject using the P-value method. The conclusions obtained by using both methods are the same. We reject the null hypothesis using the P-value method, but fail to reject using the critical region method.
In: Statistics and Probability
DataSpan, Inc., automated its plant at the start of the current year and installed a flexible manufacturing system. The company is also evaluating its suppliers and moving toward Lean Production. Many adjustment problems have been encountered, including problems relating to performance measurement. After much study, the company has decided to use the performance measures below, and it has gathered data relating to these measures for the first four months of operations.
|
Month |
|||||
| 1 | 2 | 3 | 4 | ||
| Throughput time (days) | ? | ? | ? | ? | |
| Delivery cycle time (days) | ? | ? | ? | ? | |
| Manufacturing cycle efficiency (MCE) | ? | ? | ? | ? | |
| Percentage of on-time deliveries | 75% | 76% | 81% | 88% | |
| Total sales (units) | 10,510 | 10,560 | 10,560 | 10,550 | |
Management has asked for your help in computing throughput time, delivery cycle time, and MCE. The following average times have been logged over the last four months:
|
Average per Month (in days) |
|||||||||
| 1 | 2 | 3 | 4 | ||||||
| Move time per unit | 0.5 | 0.4 | 0.8 | 0.5 | |||||
| Process time per unit | 0.6 | 0.4 | 0.8 | 0.7 | |||||
| Wait time per order before start of production | 9.2 | 8.0 | 5.0 | 4.0 | |||||
| Queue time per unit | 3.2 | 3.8 | 2.5 | 1.7 | |||||
| Inspection time per unit | 0.7 | 0.7 | 0.5 | 0.8 | |||||
Required:
1-a. Compute the throughput time for each month. (Round your answers to 1 decimal place.)
| Throughput Time | |||
| Month 1 | days | ||
| Month 2 | days | ||
| Month 3 | days | ||
| Month 4 | days | ||
1-b. Compute the manufacturing cycle efficiency (MCE) for each month. (Round your answers to 1 decimal place.)
| Manufacturing Cycle Efficiency (MCE) | |||
| Month 1 | % | ||
| Month 2 | % | ||
| Month 3 | % | ||
| Month 4 | % | ||
1-c. Compute the delivery cycle time for each month. (Round your answers to 1 decimal place.)
| Delivery Cycle Time | |||
| Month 1 | days | ||
| Month 2 | days | ||
| Month 3 | days | ||
| Month 4 |
days |
||
3-a. Refer to the move time, process time, and so forth, given for month 4. Assume that in month 5 the move time, process time, and so forth, are the same as in month 4, except that through the use of Lean Production the company is able to completely eliminate the queue time during production. Compute the new throughput time and MCE. (Round your answers to 1 decimal place.)
| Month 5 | |||
| Throughput time | days | ||
| Manufacturing cycle efficiency (MCE) | % | ||
3-b. Refer to the move time, process time, and so forth, given for month 4. Assume in month 6 that the move time, process time, and so forth, are again the same as in month 4, except that the company is able to completely eliminate both the queue time during production and the inspection time. Compute the new throughput time and MCE. (Round your answers to 1 decimal place.)
| Month 6 | |||
| Throughput time | days | ||
| Manufacturing cycle efficiency (MCE) | % | ||
In: Accounting
A plane goes missing. According to air trac control, the
probability that it has gone
missing in region A is 0.2 and in region B is 0.6. From knowledge
of these regions, it is
known that if a plane goes missing in region A, the probability
that it will be found is 0.7,
while if a plane goes missing in region B, the probability of it
being found is 0.6.
Using probability notation, answer the following questions.
(a) What is the probability that the plane did not go down in
either region A or B? Justify
your answer.
(b) If the probability of the plane being found if it goes down
outside regions A or B is
0.1, what is the total probability of the plane not being found at
all?
(c) If the plane isn't found, what is the probability it went down
in region A?
(d) If two planes go missing independently, what is the probability
that they are both
found?
In: Statistics and Probability
A plane goes missing. According to air trac control, the
probability that it has gone
missing in region A is 0.2 and in region B is 0.6. From knowledge
of these regions, it is
known that if a plane goes missing in region A, the probability
that it will be found is 0.7,
while if a plane goes missing in region B, the probability of it
being found is 0.6.
Using probability notation, answer the following questions.
(a) What is the probability that the plane did not go down in
either region A or B? Justify
your answer.
(b) If the probability of the plane being found if it goes down
outside regions A or B is
0.1, what is the total probability of the plane not being found at
all?
(c) If the plane isn't found, what is the probability it went down
in region A?
(d) If two planes go missing independently, what is the probability
that they are both
found?
In: Statistics and Probability
Question 3:
Use the annual flood data (annual maximum series) in the table below to perform a flood frequency analysis using the U.S. Water Resources Council Guidelines. The map skew for this location is - 0.2
|
Year |
Discharge (cfs) |
Year |
Discharge (cfs) |
|
1935 |
1955 |
1955 |
2260 |
|
1936 |
4050 |
1956 |
318 |
|
1937 |
3570 |
1957 |
1330 |
|
1938 |
2060 |
1958 |
970 |
|
1939 |
1300 |
1959 |
1920 |
|
1940 |
1390 |
1960 |
15100 |
|
1941 |
1720 |
1961 |
2870 |
|
1942 |
6280 |
1962 |
20600 |
|
1943 |
1360 |
1963 |
3810 |
|
1944 |
7440 |
1964 |
726 |
|
1945 |
5320 |
1965 |
7500 |
|
1946 |
1400 |
1966 |
7170 |
|
1947 |
3240 |
1967 |
2000 |
|
1948 |
2710 |
1968 |
829 |
|
1949 |
4520 |
1969 |
17300 |
|
1950 |
4840 |
1970 |
4740 |
|
1951 |
8320 |
1971 |
13400 |
|
1952 |
13900 |
1972 |
2940 |
|
1953 |
71500 |
1973 |
5660 |
|
1954 |
6250 |
||
Fill out the following table
|
Exceedance probability |
T |
K(T, Gs) |
log QT |
QT |
|
Year |
(cfs) |
|||
|
0.99 |
||||
|
0.95 |
||||
|
0.90 |
||||
|
0.8 |
||||
|
0.5 |
||||
|
0.2 |
||||
|
0.1 |
||||
|
0.04 |
||||
|
0.02 |
||||
|
0.01 |
||||
|
0.005 |
In: Civil Engineering
Use the annual flood data (annual maximum series) in the table below to perform a flood frequency analysis using the U.S. Water Resources Council Guidelines. The map skew for this location is - 0.2
| Year | Discharge (cfs) |
| 1935 | 1955 |
| 1936 | 4050 |
| 1937 | 3570 |
| 1938 | 2060 |
| 1939 | 1300 |
| 1940 | 1390 |
| 1941 | 1720 |
| 1942 | 6280 |
| 1943 | 1360 |
| 1944 | 7440 |
| 1945 | 5320 |
| 1946 | 1400 |
| 1947 | 3240 |
| 1948 | 2710 |
| 1949 | 4520 |
| 1950 | 4840 |
| 1951 | 8320 |
| 1952 | 13900 |
| 1953 | 71500 |
| 1954 | 6250 |
| 1955 | 2260 |
| 1956 | 318 |
| 1957 | 1330 |
| 1958 | 970 |
| 1959 | 1920 |
| 1960 | 15100 |
| 1961 | 2870 |
| 1962 | 20600 |
| 1963 | 3810 |
| 1964 | 726 |
| 1965 | 7500 |
| 1966 | 7170 |
| 1967 | 2000 |
| 1968 | 829 |
| 1969 | 17300 |
| 1970 | 4740 |
| 1971 | 13400 |
| 1972 | 2940 |
| 1973 | 5660 |
Fill out the following table
|
Exceedance probability |
T |
K(T, Gs) |
log QT |
QT |
|
Year |
(cfs) |
|||
|
0.99 |
||||
|
0.95 |
||||
|
0.90 |
||||
|
0.8 |
||||
|
0.5 |
||||
|
0.2 |
||||
|
0.1 |
||||
|
0.04 |
||||
|
0.02 |
||||
|
0.01 |
||||
|
0.005 |
In: Civil Engineering
Since its opening in 1977, Ocean Park was the only theme park in Hong Kong. The park, owned by the Hong Kong government, is a nonprofit organization that aims to provide visitors a unique experience in entertainment, education, and conservation. In the absence of competition, Ocean Park had existed without direction and focus. When Hong Kong officials signed an agreement to bring Disneyland to Hong Kong in 1999, it seemed as if it would be the end of Ocean Park. In this unequal competition, Ocean Park emerged the surprise winner. Quickly sprucing up its act, it has managed to outperform Disneyland and has emerged as the number one amusement park in Hong Kong .
How was Ocean Park able to turn a threat into an opportunity?
Ocean park made the decision not to compete head to head with Disneyland. Will this strategy always work when local companies face multinational giants? Explain.
How can Ocean Park further capitalize on Disneyland’s presence? (hint: check out how other parks surrounding Disney, such as Sea World and Universal Studios, survive and thrive in
Anaheim, California, and Orlando, Florida.)
How can Hong Kong Disneyland turn around its lackluster performance?
In: Operations Management
QUESTION 3 (Modules 7-8) Woody Paints (WP) produces two paint types – the Silky and the Smooth. Projected sales (in units) for the 2 products in litres for 2019 - 2021:
2019 2020 2021 2022
Silky 120,000 130,000 135,000 135,000
Smooth 70,000 80,000 85,000 85,000
Current sales prices in 2018 Silky $8 per litre & Smooth $10 per litre (expected to increase by 2% in 2019 and then remain stable for 3 years)
? Inventories are planned for each product so that projected ending finished goods inventory is 10% of the following year’s projected sales in units.
? The per unit raw material requirements for one litre of the products are as follows:
Silky Smooth Cost per litre/kg
Base paint litres 0.8 0.7 $0.50
Additives kilograms 0.1 0.2 $2.00
Container (1 per unit) $0.20
The desired materials ending inventory is 50% of that required for the next year’s production.
Opening materials inventories:
Base paint litres 72,500
Additives kilograms 9,500
Containers units 65,000
Direct Labour required per unit/litre (at $15 per hour – no increase expected)
Silky Smooth
Labour hours 0.1 0.2
Opening finished goods inventories (in units):
Silky 60,000
Smooth 35,000
The desired ending finished goods inventory is equal to the 10% of following year’s sales in units
Required:
For the two years 2019 and 2020:
(note: use the excel templates provided)
a) Prepare a sales budget in units and dollars
b) Prepare a production budget in units for the Silky and the Smooth paint products.
c) Prepare direct materials usage budgets in units for each of the materials (separate budgets) and calculate the dollar purchases for each, showing the 2 years, for the Silky and the Smooth paint products. Note that as both products use the same materials, these materials budgets should be for the combined usage of the Silky and the Smooth paint e.g. total Base paint needed for both each year.
d) Calculate the total value of materials purchases each year. (1 mark)
e) Prepare a direct labour budget.
f) Actual production of Silky paints in 2019 turned out to be 75,000 units (litres), using 9,375 kg of additives at a cost of $16,875. Calculate the materials price and volume variance for the additives for Silky paints in 2019. (4 Marks
In: Accounting
In a backyard vineyard in Napa Valley with 10 grape vines in a row, if the weather works well (just right), rain in the Spring and dry through summer, the yield for each vine is distributed roughly binomial with N=800, p=0.5. In a drought the yield is Binomial with N=800 and P=0.48, while if the year is too wet, the yield of useful grapes per vine is N=600, P=0.2. Under climate change the probability of just the right year is about 0.2 of a too wet year is 0.1, and a dry year is 0.7. On a just right year the wine can sell for 100 dollars/bottle, on a dry year the quality drops so it will sell for 60 dollars a bottle, on wet year it will sell for 30 dollars a bottle (For a Z score with absolute value >5 assume the probability is 0) The yield for all 10 vines was more than 3900 grapes. Given this yield:
a) What is the probability that you will be able to sell for 100 dollars a bottle?
b) What is the probability that you will be selling for 60 dollars a bottle?
c) What is the probability that you can only sell for 30 dollars a bottle?
d) What is your expected revenue per bottle?
In: Statistics and Probability