See attached files. Only questions 4 through 10 are required.

Consider the linear regression equation which predicts expenditures on imported goods based on personal disposable income. They are both measured in billions of 1982 dollars.
Y'=-261.09+0.2453xt
(31.327) (0.0147)
to=8.33 and t1=16.616
4. According to the equation above, if personal disposable income rises by $4 billion, by how much will spending on imports rise
5. If total personal disposable income is $2.3 trillion how much can we expect to be spent on imports?

Questions 7 through 9 are based on the following information.
Suppose you are looking at a linear regression equation of the form:
Y'=1.2108 +0.4014x1,i+0.02702,i
(0.9485) (0.2848) (0.1252)
to=1.28
t1=1.57
t2=0.22
8. You now see that R2 is 0.8241. Explain why is so important in light of the values for the t-statistics
9. Now, you are told that the value of the correlation coefficient, R, between the two independent variables, is 0.9107. In other words, Rx1, x2=0.9107. Is this something to be concerned about, why or why not.
10. Suppose we plot the squared residuals and the pattern looks like the following. What does this indicate. Be specific.
Use correct # of decimal places, when not sure round to 4 places.

Six groups of randomly selected students matched for IQ and age were formed. Each student was taught a concept of time by using one of three methods: Lecture, demonstration, or teaching machine. The scores are shown in the table below indicated the student's performance when they were tested on how well the grasped the concept.

A) Solve the following differential equation by as many different methods as you can.
(See attachment for equation)
b) There is a type of differential equation which will always be solvable by two different methods. What type of differential equation is it and which other method can always be used to solve it?
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Explain the characteristics of integer programming problems.
Give specific instances in which you would use an integer programming model rather than an LP model. Provide real-world examples.
Explain how the applications of Integer programming differ from those of linear programming.
Why is "rounding-down" an LP solutio

This is the question I need help with:
1. What are the three commonly used methods for assuring a non-discriminatory work environment and explain and evaluate how these methods are applied in the workplace.
Can your answer be in paragraphs and can you give me the sources.
Thanks you. Your help is much appreciated.

-Discuss the similarities and differences between qualitative and quantitative research methods.
-Discuss at least 2 drawbacks of using qualitative methods and mixed-method designs.

What are the most common discretionary and contingent assessment methods? What are the similarities and differences between the use of these two methods?

Prepare a report comparing the accounting implications of valuing inventory under FIFO and LIFO methods of a fast moving consumer goods (FMCG) company during a period of rising prices. Provide the required references, if applicable. Should be 1 page minimum.

What are some methods to approximate the value of an integral when it cannot be calculated directly? Show how each method works on a problem that can be solved directly, and compare the results, including the error estimations of the approximation methods.