4) A pharmaceutical company tested three formulations of a pain relief medicine for migraine headache suffers. For the experiment, 36 volunteers were selected and 12 were randomly assigned to one of three drug formulations. What is the degrees of freedom for error, DFE, in this study? What is the degrees of freedom for treatment, DFT, in this study?

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step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

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step-by-step explanation:

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step-by-step explanation: