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Question
Consider the simple linear regression model Yi = β1 + β2Xi + ui . Show that the estimate of β2 can be written as βˆ 2 = σˆxy σˆ 2 x , where ˆσxy is the estimate of the covariance between Y and X and ˆσ 2 x is the estimate of the variance of X. (Hint: Write out σˆxy σˆ 2 x in its summation form to get an idea of what your end goal is. Start with the normal equations (the first order conditions for minimizing RSS) and manipulate until you obtain the desired result.)
What is the appropriate balance between government efforts to improve health behaviors and reliance on individual responsibility?
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Leadership is different from management, but leading and managerial duties often go hand in hand.
Discuss a recent event when you witnessed or were involved in resistance to change. Identify the resistance and methods that were used to address the resistance.
A? firm's stock price is? $25 per share and is expected to grow at a? 5% compound annual rate. What should the stock price per share be in five? years?
Briefly explain the product. Then create segmentation, targeting, and positioning strategy for marketing new product.
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Kant famously--and controversially--argued that some knowledge is synthetic a priori. Can you explain in your own words what Kant might have meant by this, and can you give an example of the sort of knowledge that Kant believed possessed this stra..
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Your company has traditionally used the net present value criterion for analysing investment opportunities. It has recently been proposed that it should switch to a shareholder value approach. Discuss the advantages of doing so.
There are many different types of groups that can exist in an organization, and these will often vary depending on the size and type of organization.
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