(5 points) Which of the following most accurately reflects the difference betwee

Question

(5 points) Which of the following most accurately reflects the difference between the nul (a) The null hypothesis is almost always true; rarely is the alternative hypothesis true. and alternative hypotheses? Choose the best answer. (b) The null hypothesis is "null" in the sense that it is invalid (c) There is no difference. The hypotheses are arbitrarily labeled "null" and "alternative (d) The null hypothesis is "presumed to be correct" until we have substantial evidence to the contrary (e) None of the above.

Explanation / Answer

Answer is option (d).

Null hypothesis is what the researcher tries to disprove, implying that null hypothesis is presumed to be correct untill the researcher finds the substantial evidence against the null hypothesis.

Alternative hypothesis is what the researcher tries to prove, implying that alternative hypothesis is presumed to be incorrect untill the researcher finds the substatial evidence in favor of the alternative hypothesis.

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