Here are summary statistics for randomly selected weights of newborn girls:
nequals=231231,
x overbarxequals=30.130.1
hg,
sequals=7.97.9
hg. Construct a confidence interval estimate of the mean. Use a
9999%
confidence level. Are these results very different from the confidence interval
27.427.4
hgless than<muμless than<33.033.0
hg with only
1414
sample values,
x overbarxequals=30.230.2
hg, and
sequals=3.53.5
hg?
What is the confidence interval for the population mean
muμ?
nothing
hgless than<muμless than<nothing
hg (Round to one decimal place as needed.)
In: Statistics and Probability
Here are summary statistics for randomly selected weights of newborn girls:
nequals=187187,
x overbarxequals=32.132.1
hg,
sequals=7.37.3
hg. Construct a confidence interval estimate of the mean. Use a
9090%
confidence level. Are these results very different from the confidence interval
31.431.4
hgless than<muμless than<33.633.6
hg with only
2020
sample values,
x overbarxequals=32.532.5
hg, and
sequals=2.82.8
hg?
What is the confidence interval for the population mean
muμ?
nothing
hgless than<muμless than<nothing
hg (Round to one decimal place as needed.)
In: Statistics and Probability
Identify critical success factors for the system integration of the two practices discussed in the MMG mini-case that follows:
...
The Metropolitan Medical Group (MMG) merged with the Oak Grove Medical Group (OGMG). The Oak Grove Medical Group has four offices and owns the medical office building where their imaging and radiology lab and physical therapy and diagnostic laboratory centers are located. Although the size of staffs in both practices is about the same, OGMG has a very different financial structure. Not only are their receivables a lot higher, but the aging of their receivables is much older. This has caused them to miss payments to their vendors, resulting in a higher accounts payable balance. Further analysis revealed that some of the doctors from remote offices have referred patients for laboratory tests and to specialists outside the practice when these same tests or specialists are available internally at other offices. The room that houses the network servers is not climate controlled, secure, or backed up off-site.
In: Nursing
Each business has value to its stakeholders. This value, however, is not determined uniformly among its stakeholders. Research a business that was recently acquired or merged with another through the purchase of its stock or the buyout of its shareholders. Address the following:
Determine the value proposition that it represented for its shareholders before its acquisition. You may determine its value before acquisition and its latest 10K through yahoofinance.com.
Determine the buyout value upon acquisition. According to Brooks (2017), each firm must have a value proposition that is TRUE (Testable, Real, Unique, Essential).
Determine whether these attributes were met in the acquired company and whether the attributes were used to determine its relative value to the acquiring company.
Respond to at least two other classmates in the following ways:
Ask clarifying questions.
Offer additional insight or reflection.
Relate to the post by providing another perspective gleaned from personal experience or learnings.
In: Accounting
Two profit maximizing firms produce complementary goods (video games and game consoles, for instance). The demand functions are given by QA = 32 - 3PA - PB and QB = 32 - PA- 3PB, where QA and QB are the quantities of goods A and B, and PA and PB are the respective prices. The unit cost for each producer is 4.
a) Write an expression for the profits of firm B as a function of the prices PA and PB.
b) Treating prices as the choice variables, what is firm B's best response if firm A chooses the price PA? Illustrate firm B's best response function in a figure with PA and PB on the two axes
c) Find the Nash equilibrium.
d) Suppose that the two firms were to merge and maximize their joint profits. The merged company would charge prices that are lower than the Nash equilibrium prices. You don't need to show this but explain in words why this would be the case.
In: Economics
Data for Henry Company and Mayer Services are given in the following table,
|
Item |
Henry Company |
Mayer Services |
|||
|
Earnings available for common stock |
$230,000 |
$100,000 |
|||
|
Number of shares of common stock outstanding |
110,000 |
10,000 |
|||
|
Market price per share |
$43 |
$200 |
|||
Henry Company is considering merging with Mayer by swapping 1.19 shares of its stock for each share of Mayer stock. Henry Company expects its stock to sell at the same price/earnings
(P/E) multiple after the merger as before merging.
a. Calculate the ratio of exchange in market price.
b. Calculate the earnings per share (EPS) and price/earnings (P/E) ratio for each company.
c. Calculate the price/earnings (P/E) ratio used to purchase Mayer Services.
d. Calculate the post-merger earnings per share (EPS) for Henry Company.
e. Calculate the expected market price per share of the merged firm.
In: Finance
The Genetics & IVF Institute in Fairfax, Virginia, have developed a technique called MicroSort that claims to increase the chances of a couple to have a baby of a specified gender. The method for increasing the likelihood of a girl is referred to as XSORT and for increasing the likelihood of a boy is called YSORT. In a clinical trial, 945 couples requested baby girls and therefore were given the sperm form the XSORT method. Out of the 945 couples, 879 of them had a baby girl. In this case study, we will work toward answering the question: “Is the XSORT method effective in increasing the chance of a baby girl being born?” Questions with lines are expecting only an answer on the line while those without lines expect a sentence or two of explanation or computations.
1) What would be the expected value for the number of girls born out of 945 births in the XSORT method had no effect?
2) Using your answer to number (1), what is your initial option on whether the XSORT method is effective? (No statistics/calculations needed. Simply state your opinion and why.)
Before we continue to create the statistical argument to answer our question of the effectiveness of the XSORT method, we will take some time working with only two births. 3) So, the discrete random variable for our probability model would be X = number of ___________ in two births. (Fill in the blank.)
4) State the probability distribution for the number of (answer to (3)) in two births. Be sure to show that the two properties required for a probability distribution are satisfied.
5) Create the associated probability histogram.
In: Statistics and Probability
|
Amniocentesis Phenylketonuria Turner's syndrome Pleiotropy Sex cells |
Hemophilia separate Sickle cell anemia Protein Huntington's disease |
Genetic markers Chorionic villi sampling Meiosis Down's syndrome Klinefelter's syndrome |
fill in the blank
1. Nondisjunction happens when chromosomes do not _________ equally during the process of _______. This causes an extra chromosome or missing chromosome in the resulting _________. When a sex cell with an extra or missing a chromosome joins with a 'normal' sex cell - a zygote with either an extra chromosome or a missing chromosome is produced. Many times this will cause a miscarriage, but some conditions can develop because of nondisjunction. ________
is the result of an extra #21 chromosome and can cause some health problems and developmental delays.
XXX is called triple X and is usually nonsymptomatic. XXY is _______ and this person would be a male with some secondary female characteristics.
XO is ______________and is a female that may remain small and have little secondary sexual development.
2. __________is autosomal recessive - a recessive allele is received from each parent. In this disorder, stress causes the red blood cells to 'sickle' causing numerous problems in the body. Fatigue, anemia, enlarged spleen, arthritis, problems in several organs/systems. Sickle cell anemia is a good example of the inheritance pattern called __________.
___________(PKU) is autosomal recessive - must receive recessive allele from both parents. PKU can cause brain damage and learning disabilities if not treated with a special diet low in _________.
________. is autosomal dominant. Any person that has this disease will have a parent that has had it as well. It is a progressive degenerative disease.The previous diseases are equally common in males and females.
________ is sex-linked recessive (it is on the X chromosome) and is more common in boys than girls. It is a bleeding disorder caused by the inability of the blood to clot properly.
3. There are two tests that can be used to identify a number of genetic disorders that can be identified by chromosomal numbers or abnormalities. ___________ can also be tested for to locate specific faulty genes, and the amniotic fluid can be analyzed to look for metabolic problems.
_________ is the test that has been available longer and has a lower risk of miscarriage. A long needle is inserted into the woman's uterus and some fluid is withdrawn. This test can be done during a window of time after the 15th week.
________ is very similar although it can be less invasive, if the needle is inserted through the v a g i n a rather than the uterine wall. CVS does have a higher risk of miscarriage, but it can be done much earlier - between the 10th and 12th week.
In: Biology
An education researcher is interested in students’
performance on a mathematics test for a novel---and generally
unfamiliar---concept. The researcher believes that if students
participate in an extracurricular training session, then they will
be more likely to perform better on the mathematics test.
This researcher is testing two hypotheses. The first is that the
training session provides specific instruction and has an effect on
students’ mathematics test scores. The second is that this
treatment effect is moderated by gender. Past research has
suggested that there should not be a main effect for gender.
However, to control for this possibility, a 2-way (2x2) factorial
ANOVA is being conducted to account for any influence from gender,
the treatment, and the interaction of the two main effects.
To test the hypotheses, the research has obtained 28 participants:
14 boys and 14 girls. From each group of 14, 7 students were
randomly chosen for the treatment group. After the treatment, all
students were given the same test. This test has been used in
previous research, has a range of 0 to 100, and measures students’
ability to correctly perform the novel mathematics exercise. (The
higher the test score, the more positive the result.)
Use a 2x2 ANOVA with α=0.02α=0.02 to test the the data and evaluate
the hypotheses. Results are provided below for each group of
students.
| Factor B: Treatment | |||
| Control: No Training |
Treatment: Attend Training |
||
| Factor A: Gender |
Male | 67.6 60.0 65.4 67.3 57.6 43.1 61.3 |
61.6 69.3 70.5 56.6 64.2 60.5 62.6 |
| Female | 52.8 51.5 66.5 62.7 55.8 48.1 58.6 |
71.0 73.6 76.4 62.4 74.4 86.9 71.2 |
|
( 1a ) What is the F value for the
treatment effect?
(Report answer accurate to 2 decimal place.)
( 1b ) What is the p-value for the
F value for the treatment effect?
(Report answer accurate to 4 decimal places.)
( 1c ) Does this support the researcher's
hypothesis that the treatment has an effect on ability to solve the
mathematics exercise?
( 2a ) What is the F value for the gender
effect?
(Report answer accurate to 2 decimal place.)
( 2b ) What is the p-value for the
F value for the gender effect?
(Report answer accurate to 4 decimal places.)
( 2c ) Does this support the researcher's
assumption that gender does NOT have an effect on
ability to solve the mathematics exercise?
( 3a ) What is the F value for the
interaction effect?
(Report answer accurate to 2 decimal place.)
( 3b ) What is the p-value for the
F value for the interaction effect?
(Report answer accurate to 4 decimal places.)
( 3c ) Does this support the researcher's
hypothesis that the treatment effect is moderated by gender?
In: Statistics and Probability
Jon and Sara have two dependent ( age 5 and 6 ) Jon earned 40999 in 2017. they had no other income . Sara did not work but was a full time student for 9 months . they paid 4600 in qualifying child care expense for 2 kids during the time Jon worked and Sara at school. What is the correct amount of child and dependent care expense?
473
966
990
1012
2. in July 2017 Elias purchased a new computer system for his business for 3800 . What is the depreciation for the first year, if he opts out of special depreciation ?
380
760
1900
2280
In: Accounting