Questions
study claims that the average mean that the girls kids start walking is almost 13 months....

study claims that the average mean that the girls kids start walking is almost 13 months. A researcher want to checkif the claim is true or false. A random sample of 40 of girls kids was selected randomly, with average mean and standard deviation 14 and lmouth respectively. Check whether the hypothesis is true or false give that t- tabulated =2.093

In: Statistics and Probability

1. Assumptions: Two child family, the probability of a boy or girl is .5, sex of...

1. Assumptions: Two child family, the probability of a boy or girl is .5, sex of one child in the family is independent of the sex of the other child.

Case A: With no other information given, what is the probability that a family has 2 girls?

Case B: A family has at least 1 girl, what is the probability that a family has 2 girls?

Case C: A family has at least 1 girl who is its first born child, what is the probability that a family has 2 girls?

Comment: As we move from Case A to Case B to Case C, we have more information and the probability space shrinks and the probability of a 2-girl family increases.

In: Statistics and Probability

Explain why despite enormous natural resources, much of Latin America's population remains in poverty and the...

Explain why despite enormous natural resources, much of Latin America's population remains in poverty and the region has been repeatedly experiencing financial crises.

In: Economics

One factor contributing to a slow rate of economic growth in Latin America is that broad...

One factor contributing to a slow rate of economic growth in Latin America is that broad basic education has been underemphasized in most countries.

True or False

In: Economics

When should a Latin Square Design be used? As part of your answer, comment what needs...

When should a Latin Square Design be used? As part of your answer, comment what needs to be true about the number of levels for all factors involved.

In: Statistics and Probability

Think of a stereotype associated with an Asian country and one associated with a Latin American...

Think of a stereotype associated with an Asian country and one associated with a Latin American country. How can these stereotypes potentially influence decisions related to HR systems?

In: Operations Management

What kind of structural reforms should Latin American countries promote in order to encourage more foreign...

What kind of structural reforms should Latin American countries promote in order to encourage more foreign direct investment and promote sustained economic growth?

In: Economics

indicate the role of racism in the Tuskegee experiment and the Scottsboro boys case.

indicate the role of racism in the Tuskegee experiment and the Scottsboro boys case.

In: Economics

There were 2,074,000 baby girl and 2,173,000 baby boy born. We often assume that the probability of having a boy or a girl is 0.5 because of the chromosomal determination of sex in


There were 2,074,000 baby girl and 2,173,000 baby boy born. We often assume that the

probability of having a boy or a girl is 0.5 because of the chromosomal determination of sex in

humans. Is there reason to think that the sex ratio in the United States favor more baby boys?

To answer this question, find the probability that an equal chance of getting a boy would give

2,173,000 boys or more in 4,247,000. What do you conclude?

In: Statistics and Probability

CJ is a 16-year-old high school student who is in the clinic for a sports physical...

CJ is a 16-year-old high school student who is in the clinic for a sports physical prior to beginning basketball practice. He has no known significant medical history, takes no medications, and has no allergies. Subjective data reveal only that CJ is short of breath earlier than most boys on the team. He attributes this to needing to get into better physical condition. The physical is unremarkable except for a grade III systolic murmur heard over the entire precordium. An echocardiogram and cardiac catheterization reveal a ventricular septal defect (VSD) with moderate pulmonary hypertension.

Discussion Questions:

  1. A VSD is usually an acyanotic defect. Why is this?
  2. What is the mechanism of pulmonary hypertension? What may result if it is prolonged?
  3. What other disorders besides VSD can produce a systolic murmur? How can character of the murmur and pattern of radiation be used to differentiate among the etiologic factors?
  4. Is it necessary to close a VSD? What are the common complications of untreated VSD?

In: Nursing