This exercise is to be solved using program R.
Information about worms that inhabit various conditions was obtained (Worms.txt). Suppose that the mean of Worm.density is 5, then you want to conduct a statistical test. (H0: mu=5 vs H1: mu≠5)
Show the code and Rhistory.
| Field.Name | Area | Slope | Vegetation | Soil.pH | Damp | Worm.density |
|---|---|---|---|---|---|---|
| Nashs.Field | 3.6 | 11 | Grassland | 4.1 | F | 4 |
| Silwood.Bottom | 5.1 | 2 | Arable | 5.2 | F | 7 |
| Nursery.Field | 2.8 | 3 | Grassland | 4.3 | F | 2 |
| Rush.Meadow | 2.4 | 5 | Meadow | 4.9 | T | 5 |
| Gunness.Thicket | 3.8 | 0 | Scrub | 4.2 | F | 6 |
| Oak.Mead | 3.1 | 2 | Grassland | 3.9 | F | 2 |
| Church.Field | 3.5 | 3 | Grassland | 4.2 | F | 3 |
| Ashurst | 2.1 | 0 | Arable | 4.8 | F | 4 |
| The.Orchard | 1.9 | 0 | Orchard | 5.7 | F | 9 |
| Rookery.Slope | 1.5 | 4 | Grassland | 5 | T | 7 |
| Garden.Wood | 2.9 | 10 | Scrub | 5.2 | F | 8 |
| North.Gravel | 3.3 | 1 | Grassland | 4.1 | F | 1 |
| South.Gravel | 3.7 | 2 | Grassland | 4 | F | 2 |
| Observatory.Ridge | 1.8 | 6 | Grassland | 3.8 | F | 0 |
| Pond.Field | 4.1 | 0 | Meadow | 5 | T | 6 |
| Water.Meadow | 3.9 | 0 | Meadow | 4.9 | T | 8 |
| Cheapside | 2.2 | 8 | Scrub | 4.7 | T | 4 |
| Pound.Hill | 4.4 | 2 | Arable | 4.5 | F | 5 |
| Gravel.Pit | 2.9 | 1 | Grassland | 3.5 | F | 1 |
| Farm.Wood | 0.8 | 10 | Scrub | 5.1 | T | 3 |
In: Statistics and Probability
In the book Analysis of Longitudinal Data, 2nd ed.,
(2002, Oxford University Press), by Diggle, Heagerty, Liang,and
Zeger, the authors analyzed the effects of three diets on the
protein content of cow’s milk. The data shown here were collected
after one week and include 25 cows on the barley diet and 27 cows
each on the other two diets:
| diet | Protein content of cow's milk. | ||||||||||||||||||||||||||
| Barley | 3.63 | 3.24 | 3.98 | 3.66 | 4.34 | 4.36 | 4.17 | 4.4 | 3.4 | 3.75 | 4.2 | 4.02 | 4.02 | 3.9 | 3.81 | 3.62 | 3.66 | 4.44 | 4.23 | 3.82 | 3.53 | 4.47 | 3.93 | 3.27 | 3.3 | ||
| Barley+Lupins | 3.38 | 3.8 | 3.8 | 4.59 | 4.07 | 4.32 | 3.56 | 3.67 | 4.15 | 3.51 | 4.2 | 4.12 | 3.52 | 4.08 | 4.02 | 3.18 | 4.11 | 3.27 | 3.27 | 3.97 | 3.31 | 4.12 | 3.92 | 3.78 | 4 | 4.37 | 3.79 |
| Lupins | 3.69 | 4.2 | 4.2 | 3.13 | 3.73 | 4.32 | 3.04 | 3.84 | 3.98 | 4.18 | 4.2 | 4.1 | 3.25 | 3.34 | 3.5 | 4.13 | 3.21 | 3.9 | 3.5 | 4.1 | 2.69 | 4.3 | 4.06 | 3.88 | 4 | 3.67 | 4.27 |
(a) What is the value of LSD for Barley+Lupins diet and Lupins
diet? Use α=0.05.
Round your answer to three decimal places (e.g. 98.765).
(c) What is the absolute value of difference between mean
protein content after Barley+Lupins diet and Lupins diet?
Round your answer to three decimal places (e.g. 98.765).
(d) Estimate the standard error for comparing the means using
the graphical method. Use minimum sample size.
Round your answer to three decimal places (e.g. 98.765).
In: Math
Utility function over clothing (C) and greens (G) is defined by the function U(C,G)=C^(1/4)+G^(1/4). Let P(of C) and P(of G) denote the prices of cherries and grapes respectively. W is income that is available to consumer to spend on those two goods.
(a) Write down the customer's utility maximization problem.
(b) set up the langrangian and solve for the first order condition.
(c) Solve for the consumer's demand functions for clothing and greens. Please Explain.
In: Economics
Cost Flow Relationships
The following information is available for the first year of operations of Creston Inc., a manufacturer of fabricating equipment:
| Sales | $1,270,300 |
| Gross profit | 343,000 |
| Indirect labor | 114,300 |
| Indirect materials | 47,000 |
| Other factory overhead | 21,600 |
| Materials purchased | 647,900 |
| Total manufacturing costs for the period | 1,402,400 |
| Materials inventory, end of period | 47,000 |
Using the above information, determine the following amounts:
| a. Cost of goods sold | $ |
| b. Direct materials cost | $ |
| c. Direct labor cost | $ |
In: Accounting
Company X is in its first year of operations and has decided to use the percentage of sales method for estimating uncollectible accounts. Sales for the year totaled $112,000. Company X has assessed uncollectible accounts at 10% of sales. The company recorded $11,200 of bad debt expense. Write-offs for the period were $3,000. What is the effect of this transaction?
a. Net income is overstated by 3,000
b. None of the these
c. Bad debt expense is overstated by 3,000
d. Cost of Goods sold is understated by 3,000
In: Accounting
Adelphi Company provides the following information for their first year of operations in 2018:
Sales, 10,000 units @ $19 each
Total production, 11,000 units
Production costs per unit:
Direct materials $4.00
Direct labor $4.00
Variable overhead $2.00
Fixed manufacturing overhead $5,000
Adelphi Company uses absorption costing. Use this information to determine for Adelphi Company the FY 2018 Cost of Goods Sold. (Round & enter final answer to the nearest whole dollar)
In: Accounting
They forecast new revenues of $100 million in the first year and $200 million in year 2, growing at 2.5% per year thereafter. The cost of goods underlying these new revenues is 45 percent of the revenues.
To achieve these synergies will require an investment of $400 million initially, and 5% of the added revenue each year, to fund working capital growth.
Find the net present value of these synergies using a discount rate of 15% and a marginal tax rate of 40%.
Please show how answers are derived.
In: Finance
Remember to use proper citations (MLA or APA) in your documents.
In: Computer Science
he discussion forum this week involves Business Method Patents. First, in your view, what should the standard be for a business method patent? Second, please include a discussion of whether you think that Amazon should be able to patent the One-Click method of ordering goods AND whether you think Facebook should be able to patent a process that “dynamically provides a news feed about a user of a social network.” (Note: This question is adapted from p. 684 of the textbook.)
In: Economics
type your answer
he discussion forum this week involves Business Method Patents. First, in your view, what should the standard be for a business method patent? Second, please include a discussion of whether you think that Amazon should be able to patent the One-Click method of ordering goods AND whether you think Facebook should be able to patent a process that “dynamically provides a news feed about a user of a social network.” (Note: This question is adapted from p. 684 of the textbook.)
In: Economics