1. In China, the fertility rate is 1.8 children per woman in childbearing age. What does this mean for the population growth in the long run and why?
2. In Country B the sex ratio at birth is 0.96. How does this compare to the normal sex ratio and what does this mean for country B?
3. The share of people aged 15-64 in China was 73% in 2010 and is projected to fall to 65% in the next few years. Western companies that have been building factories in China for past few decades are now gradually looking to relocate to other places in Asia, such as Cambodia and Bangladesh. What could be the link between the two phenomena?
4. In Japan, life expectancy is 84 years, the share of the population aged 65 and above is 28%, and the economic growth is 0.8% per year. How are these three statistics connected?
In: Economics
Typical ultrasound consists of about 25 images extracted from a full-motion ultrasound examination. Each of these images consists of 512 by 512 pixels, each with 8 bit intensity information. a) What is the total number of bits in the 25 images?
b) Ideally the doctors would like to playback the ultrasounds at 30 frames per second. Assuming that when playing back each ultrasound frame is compressed by a factor of 0.8, what is the data rate required to play the ultrasound?
c) Consider now that this ultrasound needs to be viewed in real-time at a remote location using wireless communication. If the communication system has a signals to noise ration of 30dB and an overhead of 15%, what is the minimum bandwidth required for this communication.
d) Assume a practical error correction method is able to achieve a 75% of the above data rate. How many signal levels are required to achieve this data rate?
In: Electrical Engineering
1. A gas mixture containing a solute with a concentration of Y1=0.02 to be absorbed in a packed tower. The gas-liquid equilibrium is described by: Y*=1.0X.
(a) (10%) To achieve a 99% solute recovery, calculate the required gas phase overall mass transfer unit NtOG and the composition X1 at the liquid exit. X2=0.0001 at the liquid inlet with L/G=1.2.
(b) (10%) For pure liquid inlet with L/G=0.8, what is the maximum percentage solute recovery?
2. For a packed tower for gas absorption operation, under a given operating condition, it is found that kya=kxa=0.026 kmol/m2.s. The equilibrium equation is given by: y=5x. Given that ky?G0.8, calculate the percentage reduction in overall mass transfer coefficient if the gas flow rate is doubled while the liquid flow rate remains unchanged.
In: Other
Question Santana Rey has consulted with her local banker and is considering financing an expansion of her business by obtaining a long-term bank loan. Selected account balances at March 31, 2018, for Business Solutions follow.
Total assets . $120,268 Total liabilities . $875 Total equity $119,393
Required
1. The bank has offered a long-term secured note to Business Solutions. The bank’s loan procedures require that a client’s debt-to-equity ratio not exceed 0.8. As of March 31, 2018, what is the maximum amount that Business Solutions could borrow from this bank (rounded to the nearest dollar)?
2. If Business Solutions borrows the maximum amount allowed from the bank, what percentage of assets would be financed (a) by debt and (b) by equity?
3. What are some factors Santana Rey should consider before borrowing the funds?
In: Accounting
The payroll of Oriole Company for September 2019 is as
follows.
Total payroll was $506,000, of which $112,000 is exempt from Social
Security tax because it represented amounts paid in excess of
$128,400 to certain employees. The amount paid to employees in
excess of $7,000 (the maximum for both federal and state
unemployment tax) was $434,000. Income taxes in the amount of
$76,700 were withheld, as was $9,100 in union dues. The state
unemployment tax is 3.5%, but Oriole Company is allowed a credit of
2.3% by the state for its unemployment experience. Also, assume
that the current FICA tax is 7.65% on an employee’s wages to
$128,400 and 1.45% in excess of $128,400. No employee for Oriole
makes more than $135,000. The federal unemployment tax rate is 0.8%
after state credit.
Prepare the necessary journal entries if the wages and salaries paid and the employer payroll taxes are recorded separately.
In: Accounting
The payroll of Bonita Company for September 2019 is as
follows.
Total payroll was $492,000, of which $102,000 is exempt from Social
Security tax because it represented amounts paid in excess of
$128,400 to certain employees. The amount paid to employees in
excess of $7,000 (the maximum for both federal and state
unemployment tax) was $400,000. Income taxes in the amount of
$80,000 were withheld, as was $8,200 in union dues. The state
unemployment tax is 3.5%, but Bonita Company is allowed a credit of
2.3% by the state for its unemployment experience. Also, assume
that the current FICA tax is 7.65% on an employee’s wages to
$128,400 and 1.45% in excess of $128,400. No employee for Bonita
makes more than $135,000. The federal unemployment tax rate is 0.8%
after state credit.
Prepare the necessary journal entries if the wages and salaries
paid and the employer payroll taxes are recorded separately.
In: Accounting
E13-6 (L01) (Payroll Tax Entries) The payroll of YellowCard
Company for September 2016 is as follows.
Total payroll was $480,000, of which $110,000 is exempt from Social
Security tax because it represented amounts paid in excess of
$118,500 to certain employees. The amount paid to employees in
excess of $7,000 was $400,000. Income taxes in the amount of
$80,000 were withheld, as was $9,000 in union dues. The state
unemployment tax is 3.5%, but YellowCard Company is allowed a
credit of 2.3% by the state for its unemployment experience. Also,
assume that the current FICA tax is 7.65% on an employee’s wages to
$118,500 and 1.45% in excess of $118,500. No employee for
YellowCard makes more than $125,000. The
federal unemployment tax rate is 0.8% after state credit.
Instructions Please show work
Calculate the amounts for a liability for 2016 and 2017 fro compensated absences.
In: Accounting
In the standard Becker model of discrimination, each firm is associated with a discrimination coefficient of d > 0 and acts as if the wage paid to blacks is wB(1 + d) where wB is the actual hourly wage paid to blacks. Assume whites and blacks are equally productive. The going wage for whites is $18 per hour while the going wage for blacks is $10 per hour. Which of the following will characterize the labor market equilibrium when some employers have discriminatory preferences against hiring black workers?
A) All discriminating employers will hire only white workers.
B) An employer with a discrimination coefficient of 0.8 will hire only white workers.
C) An employer with a discrimination coefficient of 0.9 will hire only black workers.
D) An employer with a discrimination coefficient of 0.6 will hire only black workers.
E) Any employer with a positive discrimination coefficient will hire only white workers
In: Economics
Design a gas power plant that works as a non-ideal Regenerative Brayton cycle by determining the pressure ratio required to optimize the net power output of the cycle. The minimum cycle temperature is 300 K while the maximum cycle temperature is 1780 K. The isentropic efficiency of the turbine is 85% while that of the compressor is 75%. The effectiveness of the regenerator is to be taken as 0.8 while the gas flow rate is 30 kg/s. A T-s diagram for the cycle should be provided along with a table showing the pressure and temperature of all the states at the optimized point. Also, mention the cycle efficiency as well as the rate of heat addition and rejection at the optimized point taking the working fluid to be (i) air, and (ii) helium. Ignore pressure drops in the heat exchangers and assume constant specific heats at room temperature
note: i need solution with ees program (detailed information)
In: Mechanical Engineering
Betty's works in a steel mill making steel cables. Suppose cable strength can be altered in two different ways: thickness and the amount of molybdenum (an element used to make steel) it has. She wants to figure out the strongest cable she can make so she test several different cable formulas each many times. Below is a portion of the data she uses to run a regression with Thickness and Molydenum predicting Strength:
| Strength (Kilonewton, kN) | Thickness (mm) | Molybdenum (%) |
| 38.2 | 8 | 1.2 |
| 95.1 | 13 | 2.2 |
| 74.8 | 11 | 1.9 |
| 54.3 | 9 | 1.3 |
| 286.5 | 22 | 4.1 |
| 24.4 | 6 | 0.8 |
| 149.3 | 15 | 3.5 |
If Betty is making a mistake, what mistake is she making?
|
Multicollinearity |
||
|
She's not making a mistake |
||
|
Reverse causation |
||
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One of the variables needs a scalar |
In: Statistics and Probability