the construction activity for the year-end 31 December 2020, are as follows:

Required:

1) Prepare a schedule by project, showing clearly the amount of gross profit (loss) of the project before deducting selling, general, and administrative expenses for the year ended 31 December 2020 using the percentage-of-completion method. (based on estimated costs.)

2)Based on the schedule, show the amount of gross profit ( or loss) before selling, general, and administrative expenses for the year ended 31 December 2020, which would be reported if the following method are used:

(I) the cost-recovery method.

(II) The percentage-of-completion method ( based on estimated costs)

3) Prepare all the necessary general journal entries for the project AB for the financial year 2020, using the percentage-of-completion method.

What are the similarities and differences between GE’s traditional innovation and reverse innovation?

When they first started to conduct business, international ride-sharing companies such as Uber or Lyft relied on new, unfamiliar concepts to develop breakthrough decisions. Drivers use their own cars to transport customers who call or text for a reservation using a credit or debit card. According to the innovation matrix, ride sharing is considered a(n) _______.

Group of answer choices

transformational innovation

adjacent innovation

core innovation

product development strategy

Goldstein's Classical Mechanics has a puzzling few sentences in his discussion of orbits.

Referring to the case of orbit where the energy is low enough for the orbit to be bounded, he says :"This does not necessarily mean that the orbits are closed. All that can be said is that they are bounded, contained between two circles of radii r1 and r2 with turning points always lying on the circles."

Doesn't "bounded" automatically mean "closed"? The object cannot escape from the attractive force and hence returns over and over. At least, that is my understanding of the terms. Wikipedia says "The orbit can be open (so the object never returns) or closed (returning), depending on the total energy (kinetic + potential energy) of the system." But it also says "Orbiting bodies in closed orbits repeat their paths after a constant period of time." So the only way out I see is if a closed orbit is a special case of non-precessing bounded orbit.

You are provided with the following information on four stocks. Assume that the base year is Dec 2010 and all splits take place on this date. That is after close of trading on December 31, 2010. Stock A and B have a 2 for 1 split at the end of trading on December 31, 2010. Use this information to answer the questions listed below.

1. Calculate the rate of return on a price weighted average of the four stocks for the period December 31, 2010 to December 31, 2011. Remember to adjust for changes in the divisor.
2. Calculate the rate of return on a market value weighted index of the four stocks for the period December 31, 2010 to December 31, 2011.
3. Calculate the rate of return on an equally weighted index of the four stocks for the period December 31, 2010 to December 31,2011.

*Should causality be assessed before or after evaluating validity? Why?
  

*At the completion of a study, a statistical test was performed and a P value of .02 was obtained. State the meaning of this P value. Are these results statistically significant? Why?

Explain how the immune system responds to a pathogen before and after vaccination?

To examine the effect of a drug on blood pressure, 10 diabetics before and after the blood
pressures are measured and the following results are obtained.
 a) For this type of mass diabetics, what is the average difference between blood pressure before and after the drug?
You can tell?
 b) Do you have an estimate of the difference between the mean and before blood pressure?
 c) 90% confidence interval for the mean difference in blood pressure of the mass before and after the drug
Found it.
 d) What is the Spacing Length? How could the interval length be if there were 50 diabetics?

X(before) Y(after)

123 128

136 144

136 138

120 128

125 128

132 136

126 122

132 126

116 120

133 126

A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. Construct a 95% confidence interval for the mean difference in tests scores. Research has shown that the distribution of such differences is approximately normal. Interpret your result.