The Glades Company is a small manufacturer. It has produced and marketed a number of different toys and appliances that have done very well in the marketplace. Late last year, the product designer at the company, Tom Berringer, told the president, Paula Glades, that he had invented a small, cuddly, talking bear that might have a great deal of appeal. The bear is made of fluffy brown material that simulates fur, and it has a tape inside that contains 50 messages.

The Glades Company decided to find out exactly how much market appeal the bear would have. Fifty of the bears were produced and placed in kindergartens and nurseries around town. The results were better than the firm had hoped. One of the nurseries reported: “The bear was so popular that most of the children wanted to take it home for an evening.” Another said the bear was the most popular toy in the school.

Based on these data, the company decided to manufacture and market 1,000 of the bears. At the same time, a catchy marketing slogan was formulated: “A Friend for Life.” The bear was marketed as a product a child could play with for years and years. The first batch of 1,000 bears sold out within a week. The company then scheduled another production run, this time for 25,000 bears. Last week, in the middle of the production run, a problem was uncovered. The process of making the bear fur was much more expensive than anticipated. The company is now faced with two options: It can absorb the extra cost and have the simulated fur produced, or it can use a substitute fur that will not last as long. Specifically, the original simulated fur will last for up to seven years of normal use; the less-expensive simulated fur will last for only eight months.

Some of the managers at Glades believe that most children are not interested in playing with the same toy for more than eight months; therefore, substituting the less-expensive simulated fur for the more-expensive fur should be no problem. Others believe that the company will damage its reputation if it opts for the substitute fur. “We are going to have complaints within eight months, and we are going to rue the day we agreed to a cheaper substitute,” the production manager argues. The sales manager disagrees, contending that “the market is ready for this product, and we ought to provide it.” In the middle of this crisis, the accounting department issued its cost analysis of the venture. If the company goes with the more-expensive simulated fur, it will lose $5.75 per bear. If it chooses the less-expensive simulated fur, it will make a profit of $14.98 per bear.

The final decision on the matter rests with Paula Glades. People on both sides of the issue have given her their opinion. One of the last to speak was the vice president of manufacturing, who said, “If you opt for the less-expensive fur, think of what this is going to do to your marketing campaign of ‘A Friend for Life.’ Are you going to change this slogan to ‘A Friend for Eight Months’?” But the marketing vice president urged a different course of action: “We have a fortune tied up in this bear. If you stop production now or go to the more-expensive substitute, we’ll lose our shirts. We aren’t doing anything illegal by substituting the fur. The bear looks the same. Who’s to know?”

QUESTIONS

1. If you were advising Paula, what would you recommend?

Women athletes at the a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 36 women athletes at the school showed that 21 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 10% level of significance.

(a) What is the level of significance?

(b) State the null and alternate hypotheses.

(c) What is the value of the sample test statistic? (Round your answer to two decimal places.)

(d) Find the P-value of the test statistic. (Round your answer to four decimal places.)

We are interested in studying whether education level affects people's credit default risk (failing to pay their credit debt). A random study was conducted to see the percent of those who default on their credit card was conducted.

Highest level of education attained % defaulted Number of people studied

High School    36% 100

Some College 20% 160

Bachelor's degree 15% 180

Advanced degree 6% 50

Test the null hypothesis of whether the population proportions of credit default rate is the same for all levels of education.

Provide the test statistic value from your analysis and P-value

Problem 4. You would like to have enough money saved to receive $200,000 per year after retirement so that you and your family can lead a good life for 30 years (from age 65 to 95). You will make your first withdraw of $200,000 at the end of year when you are 65. If you will be 35 years old when you graduate and plan on making savings contributions at the end of your first year out of school, how much would you need to save in your post-MBA retirement fund to achieve this goal? Assume an interest rate is 8%.  

The College Board finds that the distribution of students' SAT scores depends on the level of education their parents have. Children of parents who did not finish high school have SAT math scores X with mean 446 and standard deviation 103. Scores Y of children of parents with graduate degrees have mean 555 and standard deviation 107. Perhaps we should standardize to a common scale for equity. Find numbers a, b, c, and d such that a + bX and c + dY both have mean 500 and standard deviation 100. (Round your answers to two decimal places.)

a =

b =

c =

d=

Suppose Mandy’s earnings are given by w(S, A) = (SA+1)^(1/2) , where S denotes years of schooling and A denotes ability. Assume that Mandy lives forever, discounts future income at a rate of r, earns nothing while in school, and supplies labor inelastically thereafter. Assume that A is exogenous and time is continuous, Mandy’s objective is to choose S to maximize the present value of lifetime earnings.

(a) Calculate Mandy’s present value of lifetime earnings.

(b) Find Mandy’s optimal choice of years of schooling S* .

(c) Find the partial derivatives of S* with respect to A. Is the relationship between S* and A intuitively reasonable? Explain

A random sample of 83 eighth grade​ students' scores on a national mathematics assessment test has a mean score of 278. This test result prompts a state school administrator to declare that the mean score for the​ state's eighth-graders on this test is more than 275. Assume that the population standard deviation is 35. At α=0.08 is there enough evidence to support the​ administration's claim? Complete parts​ (a) through​ (e).

A is done

B: fine the standardized test statistic z, and its corresponding area. Z= (round to two decimal points)

C: find the p-value

D: decide whether to reject or fail to reject the null hypothesis

1. In a person without Type 2 diabetes and with a 10-year ASCVD risk determined to be 15% with two other risk factors, what do the 2018 cholesterol guidelines suggest?
   1. The person may be withheld statin therapy because his 10-year risk is <20%
   2. The person should be considered for moderate intensity statin therapy
   3. The person is recommended for high intensity statin therapy
   4. None of the above
2. What is an example of secondary prevention?
   1. Reducing cholesterol levels in persons with a prior stroke
   2. Jump rope for heart health in school children
   3. Blood pressure control in persons with coronary calcium but no evidence of clinical events
   4. a and c
   5. All of the above

Coal with 40% C, 30% H and 30% ash by weight at 1000 kg / h flow (school
the last digit of your number) is burned with dry air fed by kmol / second. Chimney from the oven
In addition to its gas, there is a solid waste, 95% of this waste is all of the ash in coal, back
the rest is unburned carbon. While all the hydrogen in the fuel is oxidized to water;
carbon burns so that the selectivity of carbon dioxide in carbon monoxide is 10.
a. calculate Percentage of excess air used,
b. Calculate what percentage of oxygen increases

if you can help me quickly that would be great thanks

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