Questions
A recent National Science Foundation (NSF) survey indicates that more than 20% of the staff in...

A recent National Science Foundation (NSF) survey indicates that more than 20% of the staff in American research and development laboratories is foreign. Results of the study have been used for pushing legislation aimed at controlling the number of foreign workers in the United States. An organization of foreign-born scientists wants to prove that the NSF survey results do not reflect the true percentage of foreign workers in the U.S. labs. The organization collects a sample of 5,000 laboratory workers in all major labs in the country and finds that 876 are foreign.

a). At 5% level of significance, is there sufficient evidence to conclude that the NSF study overestimated the percentage of foreigners in American laboratories? Your conclusion must be in terms of the P-Value as well as setting up a Rejection Region. Show work.

b). Which statistical distribution should be applied in this situation and why? Explain carefully.

c). What type of error is possible and describe this error in terms of the problem.

d). Based on a 95% confidence level, what is the best case and worst case scenario regarding the percentage of foreigners in American laboratories?

e). Carefully interpret this interval estimation.

f). Using the results of part (d), explain carefully whether or not there is sufficient evidence to conclude that the NSF study overestimated the percentage of foreigners in American laboratories? Explain carefully.

In: Math

The following selected transactions relate to investment activities of Ornamental Insulation Corporation. The company buys securities,...

The following selected transactions relate to investment activities of Ornamental Insulation Corporation. The company buys securities, not intending to profit from short-term differences in price and not necessarily to hold debt securities to maturity, but to have them available for sale when circumstances warrant. Ornamental’s fiscal year ends on December 31. No investments were held by Ornamental on December 31, 2015. 2016 Feb. 21 Acquired Distribution Transformers Corporation common shares costing $530,000. Mar. 18 Received cash dividends of $10,000 on the investment in Distribution Transformers common shares. Sep. 1 Acquired $1,290,000 of American Instruments' 10% bonds at face value. Oct. 20 Sold the Distribution Transformers shares for $565,000. Nov. 1 Purchased M&D Corporation common shares costing $2,050,000. Dec. 31 Recorded any necessary adjusting entry(s) relating to the investments. The market prices of the investments are: American Instruments bonds $ 1,243,000 M&D Corporation shares $ 2,123,000 (Hint: Interest must be accrued for the American Instruments’ bonds.) 2017 Jan. 20 Sold the M&D Corporation shares for $2,148,000. Mar. 1 Received semiannual interest of $64,500 on the investment in American Instruments bonds. Aug. 12 Acquired Vast Communication common shares costing $780,000. Sept. 1 Received semiannual interest of $64,500 on the investment in American Instruments bonds. Dec. 31 Recorded any necessary adjusting entry(s) relating to the investments. The market prices of the investments are: Vast Communication shares $ 800,000 American Instruments bonds $ 1,223,000 Required: 1. Prepare the appropriate journal entry for each transaction or event during 2016. 2. Indicate any amounts that Ornamental Insulation would report in its 2016 balance sheet and income statement as a result of these investments. 3. Prepare the appropriate journal entry for each transaction or event during 2017. 4. Indicate any amounts that Ornamental Insulation would report in its 2017 balance sheet and income statement as a result of these investments.

In: Accounting

During the early stages of development of the Earth's atmosphere, the planet was exposed to a...

During the early stages of development of the Earth's atmosphere, the planet was exposed to a greater amount of ultraviolet radiation than it is today. What do you suppose were the effects of this radiation on the longevity of individual organisms and on the rate of evolution of life forms? Discuss it in 200 words.

In: Biology

The Early voltage is a quantity used to model ... The dependency of the collector current...

The Early voltage is a quantity used to model ...

The dependency of the collector current (Ic) on the base current for a BJT transistor in the active region

The dependency of the collector current (Ic) on temperature for a BJT transistor in the active region

The dependency of the collector current (Ic) on the base-emitter voltage for a BJT transistor in the active region

The dependency of the collector current (Ic) on the collector-emitter voltage for a BJT transistor in the active region

In: Electrical Engineering

Pseudocode and flowcharts are fiexible tool for early development of software design.


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Pseudocode and flowcharts are fiexible tool for early development of software design. They are used only as a plenning tool, and not the final product. Remember that when you eventually convert your pseudocode or your flowchart to a specific programming language (lke Javal you do not have such flexibility because very specific syntax will be required Please study chapter two and the "flowchart symbols article on the "course document" section before you attempt the following project. Flowchart Design The idea behind this project is to become familiar with the "Draw 10 web site A farmer is on his way back from the market, with him he has a fox, a chicken and some grain. When he reacbes a river crossing he must use a small boat only big enou劝for him and one other item, Unfortunately if the fox s left alone with the chicken it wil bat it, as wil the chicken eat the gran. Using flowchart technique you learned in last class draw a logical flowchart that explains how the farmer can cross the river Can you locate a step in your solution when the farmer faces two choices. What symbol is suitable for his dlecision making? Can you show this two choices properly in your design? 

In: Computer Science

Discuss tariffs in the in the early years of the United States. Analyze their effects on...

Discuss tariffs in the in the early years of the United States. Analyze their effects on industrialization and production (hint: depending on the products and the time period, their effects may be positive or negative or both) and their use as a revenue source?

In: Economics

It is 3pm and you are hungry, but it is too early for dinner so you...

It is 3pm and you are hungry, but it is too early for dinner so you decide to eat a Snickers bar. Since a Snickers has sugar, fat and protein many of the metabolic pathways you have learned about this semester kick into gear.

a. Explain (words or diagram or combo of both) how the fat from the candy is processed, starting with absorption in the digestive system and ending with storage in adipose cells.

b. Apply the redundancy = efficiency theme specifically between glucose metabolism and protein metabolism from the ingested candy bar. You may write sentences, draw diagrams, make a bulleted list, etc. or any combo.

In: Biology

1a. There are no fossils of ancient prokaryotes, nor of the early eukaryotes. No one was...

1a. There are no fossils of ancient prokaryotes, nor of the early eukaryotes. No one was present to observe events first-hand, yet we know that eukaryotes arose from an endosymbiotic event between two prokaryotic organisms... Describe TWO lines of evidence that strongly supports the endosymbiotic origin of eukaryotic life; and, state what is compelling (convincing) about this evidence

In: Biology

What are the characteristics of a company Merge & Acquisition of the late 1970s and early...

What are the characteristics of a company Merge & Acquisition of the late 1970s and early 1980s?

What were the characteristics of a company Merge & Acquisition in the rest of the 1980s?

to industry

In: Finance

Given that Xerox developed the concept of competitive benchmarking in the early 1980s and it is...

Given that Xerox developed the concept of competitive benchmarking in the early 1980s and it is still around today, it appears that the concept is here to stay. It is especially useful to companies which are falling behind others in the industry. Xerox developed the concept when management realized that Japanese companies were slowly taking over the copier market by making and selling products superior to those of Xerox at a cheaper price. Since this is a situation which is bound to affect various companies in the future, benchmarking is bound to be increasingly adopted. Do you agree?

In: Operations Management