Questions
A study was made on the amount of converted sugar in a certain process at various...

A study was made on the amount of converted sugar in a certain process at various temperatures. The data were coded and recorded as follows:

Temperature

Converted Sugar

1.0

8.1

1.1

7.8

1.2

8.5

1.3

9.8

1.4

9.5

1.5

8.9

1.6

8.6

1.7

10.2

1.8

9.3

1.9

9.2

2.0

10.5

  1. Estimate the linear regression line.
  2. Estimate the mean amount of converted sugar produced when coded temperature is 1.75.
  3. Estimate the conditional standard deviation of converted sugar on temperature.
  4. Estimate the correlation coefficient of converted sugar on temperature.
  5. Determine and plot data, the regression line and the 90% confidence interval of the above regression equation in the same plot.

In: Statistics and Probability

Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro...

Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro = 850 Ω. With a 12V DC power source, each amplifier draws 1.5 mA average current.

a) How many amplifiers do you need to cascade to get at least a voltage gain of 1000 with a load resistance of 1.0 kΩ?

b) What is the voltage gain Av obtained? (Respond with a rounded whole number)

c) For the cascade connection, find the voltage gain in open circuit. (Respond with a rounded whole number)

d) If you have a 1.5 mV input, how efficient is the equivalent amplifier?

e) Find the transconductance of the entire circuit.

In: Electrical Engineering

Consider data regarding a response y and an explanatory variable x, both numeric x y 1...

Consider data regarding a response y and an explanatory variable x, both numeric

x

y

1

2.8

0.7

2

2.6

1.3

3

6.8

-1.1

4

3.0

0.2

5

4.7

1.1

6

5.0

-0.1

7

5.0

0.9

8

2.9

1.0

9

7.0

-0.2

10

3.7

0.8

The null hypothesis that the expected value of the response is constant for all values of the explanatory variable is:

Select one:

a. Not rejected with a significance level of 5%.

b. Rejected with a significance level of 5%, but not with a significance level of 1%.

c. Rejected with a significance level of 1%, but not with a significance level of 0.1%.

d. Rejected with a significance level of 0.1%

In: Statistics and Probability

a)Compute the Internal Rate of Return (IRR) of the prospective project: Estimated cash flows are $18,200...

a)Compute the Internal Rate of Return (IRR) of the prospective project: Estimated cash flows are $18,200 at the end of every year for 6 years. Cost today is $67,000.

b) Should the company accept the project if the company's cost of capital is 7%, and why or why not?

Please show all work using the TI BAII Plus Calculator like the example below:

Make sure that 2nd I/Y which is P/Y is set to 1.0.
Make sure that 2nd PMT which is BGN is set to END (not BGN).

10 N
7    I/Y
50 PMT
1000 FV
Cpt PV
$859.53 is today’s value of the bond.

In: Finance

1.Which type of radioactive emission is analogous to an electron being emitted? positron, neutrons, alpha particle,...

1.Which type of radioactive emission is analogous to an electron being emitted?

positron, neutrons, alpha particle, gamma rays, beta particle

2. Which isotope is naturally radioactive?

42H, 21H, 168O, 23488Ra

3. the half life of protactinium-231 is 3.5x104 years. How long will it take for 10.4 grams of Pa-231 to decay to 2.6 grams?

4. the half life of phorphorous-33 is 25.3 days. How long will it take for 64 grams of p-33 to decay to 1.0 grams?

5. the half life of sr-83 is 32.4 hours. how many emissions are produced when 20 g of strontium-83 decas to 4.0 grams?

In: Chemistry

Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a...

Consider three different processors P1, P2, and P3 executing the same instruction set.

P1 has a 3 GHz clock rate and a CPI of 1.5.

P2 has a 2.5 GHz clock rate and a CPI of 1.0.

P3 has a 4.0 GHz clock rate and has a CPI of 2.2.

a. Which processor has the highest performance expressed in instructions per second?

b. If the processors each execute a program in 10 seconds, find the number of cycles and the number of instructions.

c. We are trying to reduce the execution time by 30%, but this leads to an increase of 20% in the CPI. What clock rate should we have to get this time reduction?

In: Electrical Engineering

Q2: When 500.0 mL of 2.00 M Ba(NO3)2 solution at 25.0 °C is mixed with 500.0...

Q2: When 500.0 mL of 2.00 M Ba(NO3)2 solution at 25.0 °C is mixed with 500.0 mL of 2.00 M Na2SO4 solution at 22.0°C in a coffee-cup calorimeter, the white solid BaSO4 forms, and the temperature increases to 28.2°C. Assume that the calorimeter is insulated and has negligible heat capacity, the specific heat capacity of the solution is 4.184 J/g°C, and the density of the final solution is 1.0 g/mL. Answer the questions below using the Balanced Equation: Ba(NO3)2 (aq)+ Na2SO4 > BaSO4 (s) + 2NaNO3 (aq). Answer to correct amount of Significant Figures

Determine the heat of the reaction in J

In: Chemistry

Please make sure to display your thought process? It is imperative to be able to follow...

Please make sure to display your thought process? It is imperative to be able to follow how the answer was deduced. Please be as thorough as possible. Please address all parts of this question as they are all part and critical to answering this question correctly. Please show good integrity when answering the question:

1) A sample of cross-linked natural rubber (polyisoprene) is found to have a shear modulus of 500 kPa at 25˚C. Determine the force needed to stretch a 100 mm long rod to 150 mm. Note that the original circular cross-section of the rod was 1.0 mm in diameter. What is the diameter of this rod of natural rubber while stretched to 150 mm?

In: Mechanical Engineering

2. What is a diversified portfolio? What type of risk is reduced through diversification? How many...

2. What is a diversified portfolio? What type of risk is reduced through diversification? How many securities are necessary to achieve this reduction is risk? What characteristics must these securities are necessary to achieve this reduction in risk ?what characteristics must these securities possess ?   

7.what is beta coefficient ? what do beta coefficient of 0.5 ,1.0 and 1.5 mean ?

8. If the correlation coefficient for a stock and the market equals 0 , what is the market risk associated with the stock?

9. How are the capital market line and the security market line different? What does each represent ?

10. How does arbitrage pricing theory advance our understanding of security returns?

In: Finance

Write a program that asks the user to input a set of floating-point values. When the...

  1. Write a program that asks the user to input a set of floating-point values. When the user enters a value that is not a number, give the user a second chance to enter the value. After two chances, quit reading input. Add all correctly specified values and print the sum when the user is done entering data. Use exception handling to detect improper inputs.5 pts
    1. Your code with comments
    2. A screenshot of the execution

Test Case:

      Enter float: 1.0

      Enter float: 0.5

      Enter float: A

                  Error: that is not a number

      Enter float: B

                  Error: that is not a number

      The sum of the numbers is 1.5

Python, keep it simple, thank you

In: Computer Science