Consider the following data with the dependent variable y, independent variable x, and the dummy variable a. Check if the overall regression relationship exists for the above data. If yes, test the relationship between each independent variable and the dependent variable at the 0.05 level of significance, and interpret the relationship between each of the independent variables and the dependent variable.
b. How much of the variation in the sample values of delay does this estimated regression equation explain?
d.
Definitions:
Pressure Ulcer Formation
The process by which prolonged pressure on the skin results in damage and the development of ulcers, commonly affecting individuals with limited mobility.
Fecal Incontinence
The inability to control bowel movements, causing unintentional loss of stool.
Capillary Refill
The time taken for color to return to an external capillary bed after pressure is applied, used as an indicator of circulatory status.
Purulent Discharge
A thick, often yellowish or greenish fluid produced at sites of infection, indicating the presence of pus and bacteria.
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