A survey of 500 major U.S. manufacturing plants was completed in order to gain information about water pollution near each plant facility. Data have been collected on the amount of WATER POLLUTANTS (PL) found within ½ mile of each plant. (No plants were within 50 miles of each other). The pollutants were measured as the average parts per million based on each gallon of water sampled for each plant. For each plant, the AMOUNT OF WATER (W) used and the AVERAGE RAINFALL (R) was recorded. Plants were classified to be within one of four TYPES (chemical, paper, consumer durable goods, others) and the plant AGE (under 15 years; 15 years or older) was noted. A scale for LOCAL ENVIRONMENTAL REGULATIONS ENFORCEMENT was made (Strong enforcement; Moderate enforcement; Minimal to No Enforcement). Using these data, (20 points) a. Specify a linear model that would allow you test the effects of the impact of each variable above. b. Interpret each parameter in your model. c. Show how you would test the hypothesis that chemical and paper plant pollution is equal. d. How would you test the impact of local regulation enforcement on plant’s pollution

Pretend for a minute that you are advising your candidate for President of the USA. As you near your first debate against your opposing party nominee, you realize that economic growth is going to be a main topic.

The catch is that you are not going to be debating war, health care, etc. You are restricted to showing who did a better job growing our economy and can only use GDP. You can use variations of GDP, like GDP per capita, percentage change in GDP, GDP compared to another nation, etc.

Now think you are the Republican Advisor, t demonstrate how economic growth was superior under President Trump (2017-present).

Keep in mind that you do not need to use the entire term of their presidency to make your point. For instance, perhaps you feel that President Bush is responsible for GDP growth in 2009 due to his actions in term. Similarly President Obama may be responsible for some of the growth under President Trump.

Your job is to write up a short analysis using historic GDP, to support your candidate in answering who is better at creating economics growth, Republicans or Democrats.

The level of carbon monoxide air pollution in parts per million (ppm) is measured at an entrance ramp to interstate highway I-80 near Iowa City each day. Measurements from two different samples are summarized as follows:

Sample 1: n = 96 x¯ = 126.8 s = 140.2

Sample 2: n = 143 x¯ = 126.8 s = 140.2

Let µ = mean daily level of carbon monoxide pollution at the entrance ramp, in ppm •

Interval 1 is a 90% confidence interval for µ calculated from Sample 1.

Interval 2 is a 99% confidence interval for µ calculated from Sample 1.

Interval 3 is a 99% confidence interval for µ calculated from Sample 2.

4. Calculate Interval 1.

(a) (89.04, 164.56)

(b) (89.19, 164.41)

(c) (102.99, 150.61)

(d) (103.03, 150.57)

(e) (103.26, 150.34)

5. Calculate Interval 2.

(a) (89.04, 164.56)

(b) (89.19, 164.41)

(c) (102.99, 150.61)

(d) (103.03, 150.57)

(e) (103.26, 150.34)

6. Calculate Interval 3.

(a) (89.22, 164.38)

(b) (89.44, 164.16)

(c) (103.05, 150.55)

(d) (107.34, 146.26)

(e) None of the answers is correct to the second decimal place

Airnova Inc. has two types of bonds, Bond D and Bond F. Both have 8 percent coupons, make semiannual payments, and are priced at par value. Bond D has 2 years to maturity. Bond F has 15 years to maturity.

Airnova Inc. is considering four different types of stocks. They each have a required return of 20 percent and a dividend of $3.75 for share. Stocks, A, B, and C are expected to maintain constant growth rates in dividends for the near future of 10 percent, 0 percent, and -5 percent, respectively. Stock D is a growth stock and will increase its dividend by 30 percent for the next four years and then maintain a constant 12 percent growth rate after that.

Discuss

If interest rates suddenly rise by 2 percent, what is the percentage change in both bonds?

If interest rates suddenly fall by 2 percent, what is the percentage change in both bonds?

What does this tell you about the interest rate risk of longer-term bonds?

What is the dividend yield for each of the four stocks?

What is the expected capital gains yield?

Discuss the relationship among the various returns that you find for each of the stocks.

A transparent cylindrical tube with radius r = 1.50 cm has a flat circular bottom and a top that is convex as seen from above, with radius of curvature of magnitude 2.60 cm. The cylinder is filled with quinoline, a colorless highly refractive liquid with index of refraction n = 1.627. Near the bottom of the tube, immersed in the liquid, is a luminescent LED display mounted on a platform whose height may be varied. The display is the letter A inside a circle that has a diameter of 1.05 cm. A real image of this display is formed at a height s′ above the top of the tube, as shown in

What is the minimum tube height H for which this display apparatus can function? Express your answer with the appropriate units.

The luminescent object is moved up and down periodically so that the real image moves up and down in the air above the tube. A mist in the air renders this display visible and dramatic. If we want the image to move from 60.0 cm above the top of the cylinder to 1.00 m above the top of the cylinder during this motion, what is the corresponding range of motion for the object distance s? Find the minimum value of s. Express your answer with the appropriate units.

Find the maximum value of s. Express your answer with the appropriate units.

Exercise 1:

Assume you have the following data about a country. Use the information and formulas in chapter 9 and the chapter 9 study guide to fill in the table below.

(Note: these are actual data, except the rate of economic growth. Rate of economic growth data are roughly US’s average from the past (3%) and China’s projected growth rate in the near future. Are these good assumptions to use?)

Can you see why standards of living in China are rapidly increasing? Which number shows this the best?

About how long will it be before China’s economy becomes larger than the U.S.’s?

Airnova Inc. has two types of bonds, Bond D and Bond F. Both have 8 percent coupons, make semiannual payments, and are priced at par value. Bond D has 2 years to maturity. Bond F has 15 years to maturity.

Airnova Inc. is considering four different types of stocks. They each have a required return of 20 percent and a dividend of $3.75 for share. Stocks, A, B, and C are expected to maintain constant growth rates in dividends for the near future of 10 percent, 0 percent, and -5 percent, respectively. Stock D is a growth stock and will increase its dividend by 30 percent for the next four years and then maintain a constant 12 percent growth rate after that

Discuss

If interest rates suddenly rise by 2 percent, what is the percentage change in both bonds?

If interest rates suddenly fall by 2 percent, what is the percentage change in both bonds?

What does this tell you about the interest rate risk of longer-term bonds?

What is the dividend yield for each of the four stocks?

What is the expected capital gains yield?

Discuss the relationship among the various returns that you find for each of the stocks.

Problem 9-19
Corporate valuation

Barrett Industries invests a large sum of money in R&D; as a result, it retains and reinvests all of its earnings. In other words, Barrett does not pay any dividends, and it has no plans to pay dividends in the near future. A major pension fund is interested in purchasing Barrett's stock. The pension fund manager has estimated Barrett's free cash flows for the next 4 years as follows: $2 million, $6 million, $11 million, and $13 million. After the fourth year, free cash flow is projected to grow at a constant 8%. Barrett's WACC is 16%, the market value of its debt and preferred stock totals $52 million, and it has 16 million shares of common stock outstanding.

a. What is the present value of the free cash flows projected during the next 4 years? Round your answer to the nearest cent.

b. What is the firm's horizon, or continuing, value? Round your answer to the nearest cent.

c. What is the firm's total value today? Round your answer to the nearest cent.

d. What is an estimate of Barrett's price per share? Round your answer to the nearest cent.

Consider

Airnova Inc. has two types of bonds, Bond D and Bond F. Both have 8 percent coupons, make semiannual payments, and are priced at par value. Bond D has 2 years to maturity. Bond F has 15 years to maturity.

Airnova Inc. is considering four different types of stocks. They each have a required return of 20 percent and a dividend of $3.75 for share. Stocks, A, B, and C are expected to maintain constant growth rates in dividends for the near future of 10 percent, 0 percent, and -5 percent, respectively. Stock D is a growth stock and will increase its dividend by 30 percent for the next four years and then maintain a constant 12 percent growth rate after that.

Discuss

• If interest rates suddenly rise by 2 percent, what is the percentage change in both bonds?

• If interest rates suddenly fall by 2 percent, what is the percentage change in both bonds?

• What does this tell you about the interest rate risk of longer-term bonds?

• What is the dividend yield for each of the four stocks?

• What is the expected capital gains yield?

• Discuss the relationship among the various returns that you find for each of the stocks.

The figures show a hypothetical planetary system at two different times. The system has a star S and three planets, labeled A, B, and C. The table provides the mass of each body in the system, as well as their spatial coordinates (?,?) in their initial and final positions. The spatial coordinates of the bodies are given in Astronomical Units (AU). Body Mass (kg) Initital Position Final Position S ?S=2.0197×1030 (0,0) (?S,?S) A ?A=2.0735×1028 (0.3429,0) (0,−0.5335) B ?B=6.6485×1026 (0.5617,1.2553) (−1.5385,0) C ?C=8.4729×1027 (0,1.6711) (−0.8021,−0.6035) The initial velocity of the center of mass of the system is zero. Find the magnitude ?S of the star's displacement from the origin in its final position. An x y coordinate system. The star S is at the origin. Planet A lies on the positive x-axis. Planet B is in the first quadrant of the graph. Planet C lies on the positive y-axis. Initial Position An x y coordinate system. The star S is near the origin in the first quadrant. Planet A lies on the negative y axis. Planet B lies on the negative x axis. Planet C is in the third quadrant of the graph. Final Position ?S= AU