The researcher's working theory of what s/he expects the research either to prove or disprove.
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Be able to reject the null hypothesis and accept the research hypothesis
Hypothesis
They should go back to the theories on which the hypothesis was based and determine which of them was most likely to have been wrong. This should be followed by either coming up with a modification of the theory or the development of a new theory.
5. The manufacturer of a spot remover claims that his product removes 90 percent of all spots. In a random sample, the spot remover removes 11 of 16 stains. Write the null and alternative hypotheses.
The entire group that the researcher is interested in is called the population or the target population.