Concrete blocks are produced in lots of 2000. Each block has probability 0.85 of meeting a strength specification. The blocks are independent.

NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.

1-What is the probability that, in a given lot, fewer than 1690 blocks meet the specification?

2-Find the 70th percentile of the number of blocks that meet the specification.

3-In a group of six lots, what is the probability that fewer than 1690 blocks meet the specification in three or more of them?

An organization monitors many aspects of elementary and secondary education nationwide. Their 2000 numbers are often used as a baseline to assess changes. In 2000 48 % of students had not been absent from school even once during the previous month. In the 2004 ​survey, responses from 6827 randomly selected students showed that this figure had slipped to 47 %. Officials would note any change in the rate of student attendance. Answer the questions below.

​(a) Write appropriate hypotheses.

Upper H 0 : The percentage of students in 2004 with perfect attendance the previous month ▼ is greater than 48%. is less than 48%. is different from 48%. is equal to 48%.

Upper H Subscript Upper A Baseline : The percentage of students in 2004 with perfect attendance the previous month ▼ is greater than 48%. is equal to 48%. is less than 48%. is different from 48%.

(b) Check the necessary assumptions.

The independence condition is ▼ satisfied. not satisfied. The randomization condition is ▼ not satisfied. satisfied. The​ 10% condition is ▼ satisfied. not satisfied. The​ success/failure condition is ▼ not satisfied. satisfied. ​

(c) Perform the test and find the​ P-value. ​P-value equals ________ ​(Round to three decimal places as​ needed.) ​

(d) State your conclusion. Assume a=0.05.

A. We fail to reject the null hypothesis. There is sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.

B. We can reject the null hypothesis. There is sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.

C. We fail to reject the null hypothesis. There is not sufficient evidence to suggest that the percentage of students with perfect attendance in the previous month has changed.

6) I took a random sample of people from the 2000 U.S. Census and recorded the incomes. The sample size was n = 30 (with replacement). The average of the sample was $23606 and the standard deviation of the sample was $24757. Answer these questions using the statistics that I found from my sample.

a) Find a 95% confidence interval for the mean income of the population.
b) What assumptions must you make in order for the 95% confidence level to be correct?
c) Your confidence interval is of the form (LB, UB) where LB and UB are both numbers. Suppose I'm going to take a new sample of size 30. Can I conclude that the probability the average of my sample is between LB and UB is 95%? (where LB and UB are the values you found in your interval.) Why or why not?
d)A politician claims that the mean income of US residents (in 2000) was $25,000. Test this claim with an appropriate hypothesis test using a significance level of 5%.
e) For part (d), what's the smallest significance level you could have used so that the result would be that you would reject the null hypothesis?

Consider the following data:

Number of Deaths in the U.S. by Drug Overdose

Year   2000 2001 2002 2003 2004 2005 2006 2007 2008

Deaths 17,046 17,511 14,317 13,372 17,767 14,526 11,155 18,657 16,644

Step 2 of 2 : Find the three-period moving average for the year 2007. If necessary, round your answer to one decimal place.

A $2000 bond is redeemable at 105 in 6 years. It pays semi-annual coupons at j₂= 10% and is bought to also yield j₂= 10%. This bond sells at 


Select one:

a. a discount of $55.68

b. a premium of $55.68

c. a discount of $44.32

d. a premium of $44.32

The difference between IFRS and GAAP are well documented and in the 2000's and early 2010's several convergence projects were undertakem by IASB and FASB in the effort to align the two. One of the projects relate to revenue recongnition and specifically that of construction contracts. You are to critically reflect on the cponvergence projects taking into account the following:

(a) the differences in revenue recognition (of construction contracts) between IFRS and GAAP?

(b) Why it is importatant to consider the differences in IFRS and GAAP in general?

(c) Potential for lobbying to take place in final outcome of convergence projects.

The SIA Capstone Paper must be a minimum of 2000 words in length which includes references. There is no maximum length. The paper "Engineering Ethics and Its Impact on Society" found on the Course Home Page is a good example of the writing style and citation format expected in your Capstone Paper.

THE SIA Capstone PaperTopic

Ethics of Cloning

Please address the question below and prepare a 2000 word response in traditional essay format. A good practice is one to include one reference every 100 words. Please remember that references are not included in word count and that a wide range of resources should be used for your assessment. A general rule of thumb for a 2000 word piece would be a minimum of six resources.

‘Prompted by the recession in Europe to search for promising wealthy new markets, the German Luxury Goods Exhibition in Dubai attracted top German designer names supplying perfumes, silverware, crystal and jewellery. The response to the exhibition was extremely positive.’ (Gulf News, 3 November 2016)

1) Explain the Terms (i) Income elasticity of demand (ii) cross-elasticity of demand.

2) How can these terms be applied to the market for German luxury goods, and (given that Dubai is a rich Middle Eastern Estate) How might they be used to explain the success of the exhibition?

3) What are economies of scale and why are such economies available only in the long run?

4) Since economies of scale exist, why do long-run marginal costs increase, ultimately, as output increases?

You are currently holding a portfolio that consists of (a) $2000 cash and (b) one 10-year zero coupon bond with a face value of $1000 and 12% yield to maturity. The Macaulay duration of the portfolio is

A. 1.3866

B. 2.4356

C. 2.7826

D. 3.9171

E. none of the above

please show all working and include equations thanks