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
This information relates to the following three questions:
ABO blood type is determined by one gene with three alleles: IA, IB, and i. - IA and IB are codominant; someone with IA/IB genotype has blood type AB. - IA and IB are dominant over i; someone with IA/i genotype has blood type A, someone with IB/i genotype has blood type B. - i is recessive; someone with i/i genotype has blood type O. Red-green colourblindness is caused by a mutation in a gene on the X chromosome, with an X-linked recessive inheritance pattern. The healthy allele is represented by XC, the mutated allele is represented by Xc. A woman has blood type A and normal colour vision. She is in relationships with two different men. The first man has blood type AB and is colourblind, the second man has blood type A and normal colour vision.
1. The woman's first child is a boy, who has blood type O and is colourblind. Who is the father of this child?
a) The first man
b) The second man
c) Can’t tell with this information
2. The woman’s second child is a girl, with blood type B and normal colour vision. Who is the father of this girl?
a) The first man
b) The second man
3. What is the mother’s genotype for these two genes?
a) IA/IA XC/XC
b) IA/IA XC/Xc
c) IA/i XC/XC
d) IA/i XC/Xc
e) IA/IA Xc/Xc
c) Can’t tell with this information
In: Biology
(trig based physics) Please explain what is happening, I am trying to LEARN how to do these problems as well!
Ignore air resistance and gravity in all questions.
1. When Hydrogen is heated on earth, it emits 4 colours of visible light of wavelengths 410 nm, 434 nm, 486 nm and 656 nm. When Hydrogen on a distant galaxy is observed, the 410 nm light appears to have a wavelength of 409 nm.
a) Is the galaxy moving towards earth or away from it? Explain.
b) Find the relative velocity of the galaxy with respect to the observer on earth. [Note: For this question, maintain a lot of accuracy by carrying a lot of digits in your calculations.]
c) Find the observed wavelengths of these other wavelengths of light originating from that galaxy.
A convex mirror has a radius of curvature of 4 m. A boy stands in front of the mirror so that he appears 3 times shorter than his actual height. If the image is upright, how far is he standing from the mirror? Explain if the image is real or virtual.
An object is placed 4 cm away from a concave lens of focal length 3 cm. A convex lens of focal length 5 cm is placed 4 cm away from the concave lens in the same direction (so the distance between convex lens and the object is 8 cm). Use any method to figure out if the final image is real/virtual, upright/inverted and find its distance from the convex lens.
Draw proper ray diagrams for questions 2 and 3.
In: Physics
Ruba is a 39 years old, pregnant woman at 8 weeks gestation, and her husband, Ali, is 50 years old, arrives at antenatal clinic for follow-up. The couples have been married for 12 years. Ruba completes the initial paperwork, and the nurse notes the following obstetric history: G6 T0 P0 A5 L0 M0. Ruba and Ali asked the nurse many questions regarding Down syndrome as Ali’s sister, recently, has a boy with Down syndrome.
1. What are the questions in the history taking are the highest priority for the nurse to ask, given Ruba’s obstetric history?
2.What are the initial prenatal assessment and screening tests would the nurse anticipate for Ruba at this antenatal visit?
3.What are the fetal screening and diagnostic procedures would the nurse anticipate for Ruba?
4.What are the possible screening tests can be performed to reassure Ruba and Ali regarding the possibility of having a child with Down syndrome?
5.As Ruba has many questions regarding her pregnancy, including
the physiological and psychological changes, labor process and
postpartum period. The nurse advice Ruba and Ali to attend
antenatal classes.
List six topics should be covered in the childbirth preparation
program that may help to answer Ruba’s inquiries.
6.After 7 months, Ruba is approximately 37 weeks gestation. She comes for antenatal follow-up visit complaining of backache, leg cramps, heartburn, constipation, and difficulty sleeping at night. Describe three nursing management for each Ruba’s complain (minor discomfort).
In: Nursing
Scenario: You are the assistant superintendant for a high-rise building contractor who specializes in governmental building contracts. Your company, based in Baltimore, MD, was just successful in winning a new job in NY City. This will be your first job in the big apple and your boss, the superintendent "Sam Super" is concerned about recent crane problems that he has been reading about.
He asks for your opinion about the crane safety and crane operations management.
You respond to Sam, wanting to make a good impression, that you will do some research and present him with a report on the topic. Same says "that's a good idea, college boy" and you agree to get to work on it. Knowing that Sam has a famously short attention span you decide to present your research in a concise one-page format.
Instruction:
In: Operations Management
A newspaper printing press system is more than a hundred feet long, stands four or five stories tall, and weighs 2 million pounds. Only about ten of the systems are sold each year in the United States. Because of the size and cost, a newspaper may update its system, rather than replace it, by buying “additions.”By the 1990s, Goss International Corp. was the only domestic maker of the equipment in the United States and represented the entire U.S. market. Tokyo Kikai Seisakusho (TKSC), a Japanese corporation, makes the systems in Japan. In the 1990s,TKSC began to compete in the U.S. market, forcing Goss to cut its prices below cost. TKSC’s tactics included offering its customers “secret” rebates on prices that were ultimately substantially less than the products’ actual market value in Japan. According to TKSC office memos, the goal was to “win completely this survival game” against Goss, the “enemy.” Goss filed a suit in a federal district court against TKSC and others, alleging illegal dumping. At what point does a foreign firm’s attempt to compete with a domestic manufacturer in the United States become illegal dumping? Was that point reached in this case? Discuss.
In: Other
Indicate whether each of the following costs would be classified as direct materials, direct labour, manufacturing overhead, or period cost. (1 Mark each)
|
Cost of grapes purchased by a winery |
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Depreciation on pizza ovens of a pizza restaurant |
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Salary of a plant manager in a computer production facility |
|
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Depreciation of computers used in a sales department |
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Wages of drill-press operators in a manufacturing plant |
Mama’s Pizza is famous for making Margherita pizzas and delivers pizzas to the suburb on the lower North Shore of Sydney in New South Wales. The sales price of a pizza is $16. It is estimated that the company will incur a variable cost of $250000 to make and deliver 25000 pizzas. The company’s estimated fixed costs are $114000. Required: (Show all calculations) a) What is Mama’s Pizza’s contribution margin ratio? b) Calculate Mama’s Pizza’s break-even point in units (pizzas). c) Calculate Mama’s Pizza’s break-even point in sales dollars. d) (i) What is Mama’s Pizza’s margin of safety ratio? (ii) How can managers of Mama’s Pizza use this margin of safety ratio information to manage the profitability of the business? e) How many pizzas must the company sell to earn a target profit of $75000?
In: Accounting
How do I go back to the start of the main method with the given code?
Hello I am making this java program and there is a point in the code where if the user types the character y it will start the program back at the beginning of the main method.
How can I do this without drastically changing the code?
For instance, if I type y, the program will go back to line 1 and repeat the entire process until I press n for no.
public static void main(String[] args) {
Scanner scnr = new
Scanner(System.in);
System.out.println("Welcome to
schedule generator!");
System.out.println("How many
classes would you like to take?");
boolean validInput = false;
int userInput =
scnr.nextInt();
while(!validInput) {
if(userInput
<= 0 || userInput >= 6) {
System.out.println("Please choose between 0 and 6 classes.");
System.out.println("How many classes would you like to
take?");
userInput =
scnr.nextInt();
}
else
if(userInput >= 1 && userInput <= 5) {
validInput = true;
System.out.println(":)");
}
}
System.out.println("Would you like
to generate another schedule? y - yes, n - no");
String
userResponse = scnr.next();
if(userResponse.equals("y")) {
//FixME
}
else
if(userResponse.equals("n")) {
System.out.println("Goodbye");
}else
{
System.out.println("Goodbye");
}
}
}
In: Computer Science
In: Finance
In: Economics