In a scientific study that attempts to relate the biodiversity of macro invertebrates to the acidity of the water near mines, samples of macro invertebrates were taken at the rate of a monthly sample for 12 months in two different locations. For the first locality, an average biodiversity index of 3.11 and a sample standard deviation of 0.771 were obtained. For the second locality the average biodiversity index was 2.04 with a standard deviation of 0.448.

a) BUILD and INTERPRET a 90% confidence interval for the difference in the means of the two localities assuming that the populations fit approximately a normal population and that the variances can be considered equal.

b) Evaluate whether the evidence supports the presumption of equal variances.

c) Would it have been better to use a 95% interval? Explain in detail.

Question 4 (attribution rule)

Martha purchased 10,000 common shares in 2010 of SENEDGE INC, a CCPC at $12 per share. Martha gifts her husband 5000 shares and her 14 year old daughter 5000 common shares in 2012, when the common share FMV was $13. Near the end of Dec 2015, SENEDGE INC gave out dividends $1 for each share. The husband and daughter both sell all their shares in 2016 at $16 Determine the taxable income to each individual for each case, write nil if zero

A) Common shares gifted

B) Dividends received 2015

C) Shares sold at 2016

A) Martha Husband Daug hter

B)

C)

Principles of Macroeconomics

Discussion: Impact of Low-Interest Rates on Monetary Policy
Please respond with a minimum of 100 words

Since the end of the Great Recession, interest rates have been at historic lows in the U.S.A—in some cases, close to zero. How is expansionary monetary policy, or more specifically an open market purchase, supposed to work? How do near-zero interest rates limit the ability of expansionary monetary policy to work?
How has the Fed responded to this quandary? That is, what policies has the Fed conducted?
In your opinion, how effective has the Fed’s policy been as a response to the Great Recession? What evidence can you suggest to support your position?

A study by Bechtel et al., 2009, described in the Archives of Environmental & Occupational Health considered polycyclic aromatic hydrocarbons and immune system function in beef cattle. Some cattle were near major oil- and gas-producing areas of western Canada. The mean monthly exposure to PM1.0 (particulate matter that is <1μm in diameter) was approximately 7.2 μg/m3 with standard deviation 1.5. Assume that the monthly exposure is normally distributed.

a. What is the probability of a monthly exposure greater than 9 μg/m3?

b. What is the probability of a monthly exposure between 3 and 5 μg/m3?

c. What is the monthly exposure level that is exceeded with probability 0.05? d. What value of mean monthly exp

Does pollution increase mean death rate? A researcher sampled 31 “unpolluted” areas greater than 50 km away from industrial plants, and 23 different “polluted” areas near industrial plants. The average mortalities in the unpolluted areas were 3 deaths per day per 100000 people (with a sample standard deviation of 0.4 deaths/day/100000 people), and was 3.3 deaths per day per 100000 people (with a sample standard deviation of 0.5 deaths/day/100000 people) in the polluted area. At the alpha=0.01 level, answer the question does pollution increase average death rate? Show statistical and critical values as appropriate. Assume that variances are equal.

Sunspots are cooler than the surrounding region of the Suns surface True or False

The Sun is a main-sequence star  True or False

All stars are made primarily of hydrogen and helium at birth : True or False

The distance to nearby stars can be measured by parallax   True or False

It is impossible to measure stellar mass in binary systems   True or False

Stars near the lower right of the main sequence are lower in mass and have longer lifetimes than stars further up the main sequence : True or F

High mass stars die in supernovae explosion: tRUE OF False

Pulsars are rotating neutron stars with magnetic fields : True or False

A white dwarf is supported by electron degeneracy pressure : True or False

(Question 1)Module 8 - Strategic Thinking

Design two specific processes that you can use to encourage strategic thinking in your HCO. Compare how these different processes offer this encouragement.

• Your post should be 175-250 words.

(Question 2)

Module 8 - Future External Challenges to Health Care Organizations

Identify at least one external challenge to HCOs you see arising in the near future. Provide at least one example of how your HCO could prepare to meet that challenge.

In your post, discuss your prediction related to how the roles of the strategic planners and facilitators will change in the future.

• Your post should be 175-250 words.

Ocean currents are important in the studies of climate change as well as ecology studies of dispersal of plankton. Drift bottles are used to study ocean currents in the Pacific near Hawaii, the Solomon Islands, new guinea, and other islands. X represent the number of days to recovery of a drift bottle after release and why represent the distance from point of release to point of recovery in km/100. The following data are taken from the reference by professor E.A. Kay, University of Hawaii.

x days 74 79 34 97 208

y km/100 14.6 19.5 5.3 11.6 35.7

Test slope in regression use significance level of 0.05

Find a confidence interval

True or Flase, preferably explain the reasoning behind the answer

a)The electric field inside the solid metal sphere is never zero

b)If the solid sphere is an insulator (instead of metal) with net charge Q, the charges are wherever they were placed, and cannot move around.

c) If the solid sphere is an insulator (instead of metal) with net charge Q, the electric field for r >> R would be the same as that of a conductor with the same shape and charge.

d)The net charge on the inside of the solid metal sphere is neutral.

e)The electric field for the metal sphere at r << R will be the same as the field of a point charge, Q, at the origin

f)The electric field near the metal surface on the outside is parallel to the surface.

Each year, Worrix Corporation manufactures and sells 3,700 premium-quality multimedia projectors at $12,700 per unit. At the current production level, the firm’s manufacturing costs include variable costs of $3,200 per unit and annual fixed costs of $6,700,000. Selling, administrative, and other expenses (not including 15% sales commissions) are $10,700,000 per year.

The new model, introduced a year ago, has experienced a flickering problem. On average, the firm reworks 40% of the completed units and still has to repair under warranty 15% of the units shipped. The additional work required for rework and repair caused the firm to add additional capacity with annual fixed costs of $2,500,000. The variable costs per unit are $2,700 for rework and $3,200, including transportation cost, for repair.

The chief engineer, Patti Mehandra, has proposed a modified manufacturing process that will almost entirely eliminate the flickering problem. The new process will require $12,700,000 for new equipment (including installation cost) and $3,700,000 for training. The firm currently inspects all units before shipment. Patti believes that current appraisal costs of $600,700 per year and $57 per unit can be eliminated within 1 year after the installation of the new process. Furthermore, if the new investment is made, warranty repair cost per unit are estimated to be only $1,700, for no more than 5% of the units shipped.

Worrix believes that none of the fixed costs of rework or repair can be saved and that a new model will be introduced in 3 years. This new technology would most likely render obsolete the equipment the company purchased a year ago.

The accountant estimates that warranty repairs now cause the firm to lose 20% of its potential business.

Required:

1. What is the total required initial investment cost (cash outlay) associated with the new manufacturing process?

2. What is the total expected change (i.e., increase or decrease) in cost of quality over the next 3 years from using the new manufacturing process being proposed?

3. Based solely on financial considerations, should Worrix invest in the new process? Specifically: (a) What is the cumulative (i.e., 3-year) estimated change in pretax cash flow assuming the new system is implemented? (b) What is the estimated payback period for the proposed investment? (c) What is the estimated pretax internal rate of return (IRR) for the proposed investment? (Use the built-in IRR function in Excel to answer this question.) (Round your "IRR" answer to 2 decimal places.)