or the researcher's initial assumption is incorrect.either the researcher's initial assumption is correct and he experienced a very unusual event.There is not enough evidence to do otherwise. If it is likely, then the researcher does not reject his initial assumption that the average adult body temperature is 98.6 degrees.It is either likely or unlikely that the researcher would collect the evidence he did given his initial assumption that the average adult body temperature is 98.6 degrees: Then, the researcher uses the data he collected to make a decision about his initial assumption. The average body temperature of the 130 sampled adults is 98.25 degrees. In doing so, he selects a random sample of 130 adults. Then, the researcher went out and tried to find evidence that refutes his initial assumption. That is, the researcher wants an answer to the question: "Is the average adult body temperature 98.6 degrees? Or is it lower?" To answer his research question, the researcher starts by assuming that the average adult body temperature was 98.6 degrees F. A researcher hypothesized that the average adult body temperature is lower than the often-advertised 98.6 degrees F. Consider the population of many, many adults.
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