Briefly describe the principles behind the use of EXTRAPOLATION (TREND) methods of forecasting future water use. Outline the advantages and disadvantages of using this type of method

What do you mean by the impact multiplier or impact propensity? How is it different from the long-run propensity (LRP)? Discuss with an appropriate example of the distributive lag model.

Suppose researchers at an abdominal transplant clinic are concerned about the rate of graft loss due to diabetes status prior to receiving a donor kidney. Research has shown that gender discordance, or receiving a gender from a donor of an opposite gender may increase the risk of both exposure and outcome after transplant. Assume the following tables represent the stratified analysis of the potential confounding variable. (9 points)   Gender Discordance Graft Failure No Graft Failure Total Diabetes II 23 10 33 No Diabetes II 4 44 48 Total 27 54 81 Gender Concordance Graft Failure No Graft Failure Total Diabetes II 9 34 43 No Diabetes II 12 87 99 Total 21 121 142   A)  Calculate the stratum specific estimates for the odds ratios in each strata. B)  Observe the difference in the odds ratios. Based on observation alone, what are we likely to conclude regarding the relationship between outcome and exposure…

Why do we need to study variability? Can you give a 'real life' example?

Name the forecasting methods

Students also often confuse the idea of Lurking Variable and Confounding Variable, but these are different but possibly related. This discussion is designed for students to help each other build a complete understanding, and clearly separate these as two distinct concepts. Discuss the similarities and differences between these, as well as what they imply for the conclusions of a research study.

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Excel Exercise Week 5 Chapter 7 workbook. Please upload your answers as an excel file with properly labeled answers. Please answer in excel only. Data are collected in a clinical trial evaluating a new compound designed to improve wound healing in trauma patients. The new compound is compared against a placebo after treatment for 5 days with the new compound or placebo, the extent of wound healing is measured and the data are shown in table 7-6. Is there a difference in the extent of wound healing by treatment? (hint: are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. Percent Wound Healing Treatment                0-25%           26-50%             31-75%               76-100% New Compound (N=125) 15          37                     32                        41 Placebo(N=125)                  36          45                     34                         10 Table 7-6

Hello! Please analyse the table 3 and 4 in the image attached. the data is supposed to see if there is a relationship between the prevalence of obesity(table3) or life expectancy (table4) between males and females.  thank you!

An experiment is conducted to see the effect of light intensity on plant growth, what is the dependent variable in this scenario?