he weight of an organ in adult males has a bell-shaped distribution with a mean of
320
grams and a standard deviation of
30
grams. Use the empirical rule to determine the following.
(a) About
68%
of organs will be between what weights?
(b) What percentage of organs weighs between
230
grams and
410
grams?
(c) What percentage of organs weighs less than
230
grams or more than
410
grams?
(d) What percentage of organs weighs between
260
grams and
350
grams?
In: Statistics and Probability
Suppose that a certain brand of light bulb has a mean life of 450 hours and a standard deviation of 73 hours. Assuming the data are bell-shaped: (Show work to get full credit)
a. Would it be unusual for a light bulb to have a life span of 320 hours? 615 hours? Justify each response.
b. According to the Empirical Rule, 99.7% of the light bulbs have a lifetime between what two values?
c. Determine the percentage of light bulbs that will have a life between 304 and 596 hours.
In: Statistics and Probability
The quantitative reasoning GRE scores are known to approximately have a Normal distribution with a mean of = 151.3 points and a standard deviation of = 8.7 points.
a. Use the Empirical Rule to specify the ranges into which 68%, 95%, and 99.7% of test takers fall. Include a picture to illustrate the ranges.
b. A graduate program in Public Policy Analysis admits only students with quantitative reasoning GRE scores in the top 30%. What is the lowest GRE score the program will accept?
c. Above what score do the top 1% of GRE scores fall?
In: Statistics and Probability
I need solution for this issue with all the details./Br/Ha
Nada Eissa and Jeffrey Liebman analysed an extension of the EITC that took place in 1987 in their study titled “Labor Supply Response to the Earned Income Tax Credit”.
a) How did the study exploit the extension of the EITC? That is what was the empirical strategy? What is the main assumption when using this strategy? Do you think that this assumption was satisfied in the case here?
b) What did the study find? Is this in line with the predictions made by the model used in Q.1)?
In: Economics
The increasing number of women in leadership positions and women in academia brought about by dramatic changes in American society have fueled the now robust scholarly interest in the study of leadership and gender. This chapter explores empirical evidence related to the issues of gender and leadership by discussing the gender gap in leadership and prominent explanations for it, and addressing approaches to promoting women in leadership.
1) What are the strengths and criticism of this approach?
2) What are the differences between female and male leadership styles?
3) Describe the Leadership Labyrinth and provide examples?
In: Operations Management
he weight of an organ in adult males has a bell-shaped distribution with a mean of 320 grams and a standard deviation of 45 grams. Use the empirical rule to determine the following.
(a) About 99.7% of organs will be between what weights?
(b) What percentage of organs weighs between 230 grams and 410 grams?
(c) What percentage of organs weighs less than 230 grams or more than 410 grams?
(d) What percentage of organs weighs between 275 grams and 455 grams?
In: Math
Implement heap sort by using the bottom-up insertion method. Add this sort to your sorting framework. Evaluate its performance in terms of the numbers of comparisons and exchanges, and compare it to the performance of the two advanced sorting methods that you have previously implemented. Submit your report with detailed empirical results and a thorough explanation of these results. Which of the three advanced sorting method is the best choice for a) ordered data, b) data in reverse order, and c) average data for the data sets you have experimented with.
(Java)
In: Computer Science
The following data is given for a horizontal highway
curve having 2 lanes with Lane width of 3.65 m each: Ruling design
speed is 110kmph, Allowable rate of change of circular acceleration
= 0.5 to 0.8. Allowable rate of introduction of super-elevation = 1
in 144, Take maximum allowable superelevation and lateral
frictional co-efficient is 0.15.
Calculate the length of a transition curve for following cases.
Rate of change of centrifugal acceleration
(C).
Rate of introduction of super-elevation.
Using empirical equations for plain and mountainous
terrain.
In: Civil Engineering
This question concerns our short run model of exchange rate determination.
Why do we need a different model of exchange rates in the short run and the long run? Your answer should include some reference to empirical evidence.
Assume we are in the short run, and assume that the Federal Reserve keeps the supply of dollars fixed. The U.S. has an excellent corn harvest this year, so real output Y goes up. Explain what you expect to happen to the dollar-euro exchange rate E$/€ and why.
In: Economics
Each of the distributions below could be used to model the time spent studying for an exam. Take one random sample of size 25 from each of the distributions below. Then, take 1,000 resamples (i.e., sample with replacement) of size 25 from your sample. In each case (a,b,c), plot the empirical distribution of the sample mean, estimate the mean of the sample mean, and estimate the standard deviation of the sample mean. Compare the results to the theoretical results.
a. N(5, 1.52)
b. Unif(0,10)
c. Gamma(5,1)
In: Math