There are two types of works: some have a high productivity, aH, and some have low productivity, aL. Workers can get a job after leaving high school or they can 2 go to college at a cost of cH for high productivity workers and cL for low productivity workers. Assume that aH > aL > 0 and cL > cH > 0. Education has no impact on productivity. Describe a separating equilibrium in which employers pay workers a wage equal to the expected productivity conditional on the level of education. What conditions must be satisfied by the parameters aH, aL, cH and cL in order for such as separating equilibrium to exist?
In: Economics
A poll reported that only 593 out of a total of 1594 adults in a particular region said they had a "great deal of confidence" or "quite a lot of confidence" in the public school system. This was down 5 percentage points from the previous year. Assume the conditions for using the CLT are met. Complete parts (a) through (d) below.
a. Find a 95% confidence interval for the proportion that express a great deal of confidence or quite a lot of confidence in the public schools, and interpret this interval.
The 95% confidence interval for the proportion that express a great deal of confidence or quite a lot of confidence in the public schools is ?
(Round to three decimal places as needed.)
In: Statistics and Probability
In: Statistics and Probability
Your client Mr. B wants to lose 20 lbs before his high school reuinion next month. He has decided to eat only meat and other fried foods for the next 4 weeks because he believes a very low carb diet will help him lose weight. How would you respond, considering both the pros and cons of this diet? How would you explain why he needs some carbohydrates? what should be his minimum intake of carbs in grams, and what foods would he need to eat every day to reach his minimum?
In: Nursing
Name the analysis that would be conducted to respond to the research questions listed below. Second, explain how you know that is the correct analysis. ( you have to choose if the information that is shown here that fits this requirement: Qualitative research method, quantitative research)
What are possible differences in frequencies between males and females who were in the top 50% versus bottom 50% of their graduating class in high school?
Analysis:
How you know:
What are possible differences between GPA of graduate students at a large public research university and the mean GPA (μ=3.25) advertised on this university’s website?
Analysis:
How you know:
In: Advanced Math
What measure of disease frequency is each of the following? (Incidence density, cumulative incidence, period prevalence, point prevalence).
a. The percentage of 70-year-old men living in Harris County who develop pneumonia between January 1, 2011 and December 31, 2011.
b. The percentage of women who delivered babies on December 31, 2010.
c. The percentage of fifth graders who meet the criteria for obesity during the 2011-2012 school year.
d. The number of live-born babies who die of sudden infant death syndrome during the first year of life per 100,000 baby-years of follow-up.
In: Nursing
The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes:
5 4 5 4 4 3 6 4 3 3 5 6 3 3 2 7 4 5 2 2 2 3 5 2
Use a 0.05 significance level to test the claim that the mean family size differs from 3.18.
a)State the claim and opposite symbolically.
b) State the Null and alternate hypotheses symbolically.
c) Identify the significance level.
d) Find the P-value
e) State the decision
f) State the conclusion
In: Statistics and Probability
1a. Find the number of ways to rearrange each of the following words a. GUIDE b. SCHOOL c. SALESPERSONS
1b. A handful of 6 jellybeans is drawn from a jar that contains 5 different flavors: blueberry, popcorn, pineapple, apple, lemon. a. What outcome does × × ×| × | | × ×| represent? b. How many ways are there to select a handful of 6 jellybeans from the jar?
1c. How many integer solutions are there to the equation x + y + z = 8 where x, y, and z are all greater than or equal to zero?
1d. How many ways are there to choose a dozen donuts from the 21 varieties at a donut shop?
In: Advanced Math
Another student must pass through 12 sets of traffic lights on his way to university each day. Suppose
that each of the lights is green 36% of the time, yellow 5% of the time, and red 59% of the time.
Suppose it is known that the traffic lights function independently.
(a) What is the probability that the student encounters exactly five red lights on his way to university
one day?
(b) What is the probability that the student encounters at least three green lights on his way to
university one day?
(c) In a five-day school week, what is the probability that the student encounters exactly seven yellow
lights on his way to university?
In: Statistics and Probability
(15 pts) A person’s Intelligence Quotient (IQ) is determined via a series of test questions. The IQ score itself is designed to be approximately normally distributed with a mean value of 100 and a standard deviation of 15. In a sample of 20 students with behavioral problems, a school administrator observes an average IQ of 102.7. The administrator believes that students with behavioral issues have a different cognition from their peers, and thus a different average IQ. State the appropriate hypotheses; conduct a hypothesis test using α = 0.05 utilizing the classical approach, confidence interval approach, or p-value approach; state the decision regarding the hypotheses; and make a conclusion.
In: Statistics and Probability