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In the following descriptions of a study, confounding is present. Describe the explanatory and confounding variable in the study and how the confounding may invalidate the conclusions of the study. Furthermore, suggest how you would change the study to eliminate the effect of the confounding variable.
a. A hospital introduces a new screening procedure to identify patients suffering from a stroke so that a new blood clot medication can be given to the patient during the crucial period of 12 hours after stroke begins. The procedure appears to be very successful because in the first year of its implementation there is a higher rate of total recovery by the patients in comparison to the rate in the previous year for patients admitted to the hospital.
b. A high school mathematics teacher is convinced that a new software program will improve math scores for students taking the SAT. As a method of evaluating her theory, she offers the students an opportunity to use the software on the school's computers during a 1-hour period after school. The teacher concludes the software is effective because the students using the software had significantly higher scores on the SAT than did the students who did not use the software.
The information relating to cost department of ALPHA& OMEGA Corporation is as follows. Prepare Cost of Goods Sold Statement from the abovein formation.
alamo inc. had 600 million in taxable income for the current year. alamo also had an increase in deferred tax assets of
tyler smith has worked in an upholstery shop for 10 years. tylers wages were 20000. lately tyler has been unhappy with
Capitalization of Interest Langer Airline is converting from piston-type planes to jets. Delivery time for the jets is 3 years, during which substantial progress payments must be made.
cost-volume-profit analysis is based on three basic assumptions. which of the following is not one of these
MBA 640 Exam 1, Spring 1, 2014: Compute the unit product cost for one barbeque grill for each of the costing methods described in Chapter 9. Prepare an income statement for the year using the absorption approach.
The current balance in Retained Earnings is $1,600,000. Determine the maximum dividend per share that can be paid to common shareholders.
marple companys budgeted production in units and budgeted raw materials purchases over the next three months are given
Prepare the manufacturing staffs calculations for the three alternatives: In addition to reducing costs, the new technology proposed for the greenfield plant would increase rnanufacturing flexibility, which would enable eTI to respond more quic..
Because of the remoteness of the location, groceries are flown in by helicopter to Adam each week. Does Adam have any taxable income from this arrangement? Explain.
How much will the expected cash receipts amount to for the month of March, 2016?
the company received an order on dec.29 that was boxed and was sitting on the loading dock awaiting pick-up on december
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