"These are the results of a three point test cross in Drosophila for the three loci cv f v: cv + + = 212, + v + = 48, + + + = 606, cv v + = 771, cv f v = 299, cv + f = 52, + f v = 229, + + f = 850. What is the map distance to 2 decimal places between the cv and f loci? Hint: Establish gene order first."

can anyone tell me the reason why if the number of basis is equal to the dimension of a vector space V then it is the basis of the vector space V. and also what the theorem is? since, I think if V=span{(1,0,0), (0,1,0)} and dim(V)=2 and basis={(1,0,0), (0,0,1)} which the number is also 2. but it is not the basis of V. So, can you tell where is the mistake. THANK YOU!

1. Fashion Marketers can obtain a wealth of information from their own market customer databases.
   True
   False

QUESTION 4

1. One of the largest sources of secondary data is the federal government and its various agencies.
   True
   False

7 points   

QUESTION 5

1. Marketing Research is used when a business needs to define the overall size and makeup of the customer base for a product.
   True
   False

QUESTION 6

1. 
   
   The type of research in which data is collected once from a random sampling of people, offering a snapshot of statistics or opinions at a particular point in time, is called.

QUESTION 7

1. The most commonly used technique for gathering data is the focus group.
   True
   False

Match each term with the correct description:

You are a member of a research team that has been asked to create a proposal for a study design to address a potential cholera outbreak in Puerto Rico.

The Centers for Disease Control and Prevention is sending a team of epidemiologists to Puerto Rico to investigate cases of cholera associated with Hurricane Maria. As a team member, you are asked to research study design for the upcoming investigation, identifying the advantages and disadvantages of the following four designs as they relate to the mission:

Cross-sectional.

Case control.

Cohort.

Clinical trial.

Your job is to report back to leadership with a recommendation for a study design to be used in the investigation. You must also recommend an implementation strategy that considers the nature of the environment and the affected population.

You are a member of a research team that has been asked to create a proposal for a study design to address a potential cholera outbreak in Puerto Rico.

The Centers for Disease Control and Prevention is sending a team of epidemiologists to Puerto Rico to investigate cases of cholera associated with Hurricane Maria. As a team member, you are asked to research study design for the upcoming investigation, identifying the advantages and disadvantages of the following four designs as they relate to the mission:

Cross-sectional.

Case control.

Cohort.

Clinical trial.

Your job is to report back to leadership with a recommendation for a study design to be used in the investigation. You must also recommend an implementation strategy that considers the nature of the environment and the affected population.

Instructions

To successfully complete this assignment, you must include the following:

Outline the basic processes a team will use to investigate a public health threat.

Select the appropriate study design for investigating a disease outbreak.

Compare epidemiological strengths and weaknesses of study designs used in research and practice.

Recommend evidence-based epidemiological methods for investigating cases of disease outbreak after a natural disaster.

Describe how to control bias in an epidemiological research study.

Recommend implementation strategies for a disease investigation team.

The evidence supporting obesity as a risk factor for colon cancer remains inconclusive, especially among women. A study reported the association between obesity (measured at baseline) and colon cancer morbidity as determined from review of medical records and death certificates in a nationally representative cohort of men and women age 25-74 years who participated in the First National Health and Nutrition Examination Survey from 1971 to 1975 and were subsequently followed up through 1992. The following table is from this study for men and women combined.

a. Which of the following best describes the research design used in this study? Choose the ONE best answer. (1 point)

1. Cross-sectional survey
2. Ecological study
3. Population based case control study
4. Cohort study
5. None of the above

b. Complete the table above by calculating the crude body mass index-specific incidence rates. (Show your work in the table above.) (3 points – ½ point for each correct answer)

c. Calculate the relative risk (rate ratio) of colon cancer associated with a BMI of 30+. Use the lowest BMI category as the reference group. In one sentence interpret your answer. (2 points)

d. Calculate the attributable fraction among those in the 30+ BMI category. In one sentence interpret your answer. (The attributable fraction formulas provided in class can be used even though the data provided here is for rates.) (2 points)

which one is true and which one is false?

1. Investment depends both on the expected present value of future profits and on the current level of profit.
2. Tobin’s q theory of consumption is based on the notion that the stock market can provide a   good estimate of expected profitability.
3. In the pipeline theory, inventories are held as part of a production process.
4. As a result of anticipated information, stock prices follow a random walk.
5. The return on the savings account is R × ps; the return on the stock is the dividend plus the capital gains, Δps.
6. The MPK equals the user costs, uc & variations in the user costs, given the MPK schedule, are then used to explain variations in the desired capital stock, investment.
7. Wage equality is largely caused by a steady increase in the demand for high-skilled workers relative to the demand for low-skill workers.

10-Deflation spiral or deflation trap occurs at Y’ when output is still below potential, and thus inflation is still decreasing.

Please explain and show work.

Joseph’s utility function is given by UJ = xA + 2xB, where xA denotes his consumption of apples and xB his consumption of bananas. Clara’s utility function is given by UC = 3xA + 2xB. Joseph and Clara shop at the same grocery store.

a. When we observe that Joseph leaves the store with some bananas, then we can deduce that Clara also buys some bananas.

b. There exist prices of apples and bananas such that both consumers buy strictly positive amounts of both goods.

c. When we observe that Joseph leaves the store with some apples and some bananas, then we can deduce that Clara also buys some apples and some bananas.

d. When we observe that Joseph leaves the store with some apples, then we can deduce that Clara also buys some apples.

e. Apples and bananas are perfect complements for Joseph.

1. Define a Student class , Student class has the follow data fields added---- major: String gpa: double studentID: String // unique id (Find a solution to manage the generation of unique “studentID”) Methods: double getGPA(); void setGPA(); getMajor(String major) void changeMajor(); 2 String toString(); // of major and GPA ,boolean equals(Object o); // 2 students are equal if them have same // personal information plus same student ID String getNextUniqueID(); // this method should be declared as static.

2.  Redesign Student class : (a) Remove “gpa” data field and related methods (b) Add data field: courses:ArrayList (c) Add the following methods: • boolean addCourse(MyCourse course); // add a course to courses list • boolean removeCourse(Course course); // remove a course from the courses list // based on the course information (courseID) in Course object • boolean removeCourse(int courseID); // search and remove a course from the list // based on the unique courseID • ArrayList getCourseList(); • String getCourseGrade(int courseID); // search for a course by courseID from // “courses” list; if not exist, return “no taken”; otherwise, return a grade // by mapping status to “W”(withdraw), “IP” (in progress), or “A” through // “F” (mapping score to these grades) • double getAverageGPA(); // select courses which have taken from “courses”; // map grade “A” through “F” to 4.0 through 0.0; then calculate // average GPA • toString(), equals()

Babcock and Marks (2010) reviewed survey data from 2003-2005, and obtained an average of u = 14 hours per week spent studying by full-time students at 4-year colleges in the United States. To determine whether this average has changed in the past 10 years, a researcher selected a sample of n = 64 of today’s college students and obtained an average of M = 12.5 hours. If the standard deviation for the distribution is σ = 4.8 hours per week, does this sample indicate a significant change in the number of hours spent studying? Use a two-tail test with alpha = .05. List, number, state, and clearly show all 4 steps of the hypothesis test. For step 2, state alpha and describe the critical regions of the test statistic distribution. Step 4 must also answer the question posed in the problem. Clearly show all calculations steps to get answers including formulas needed to solve this problem. Answers must be typed or word processed.