Reference no: EM13998380
Which of the following statements is NOT a null hypothesis?
A) Men and women have equivalent driving skills.
B) There is no relationship between age and mathematical skills.
C) Alcohol reduces inhibitions. <---I think it's this one?
D) Marijuana has no effect on motivation.
Jason wanted to study the affect of drinking on test performance. He assigned one group of people to have a beer before writing a test and another group to have a glass of water before writing the same test. When Jason analyzed his data, he found his results were significant at an alpha level of < 5%. What does this mean?
A) The probability that the groups are different is less than 5%.
B) The probability that the groups are the same is less than 5%. <--I think its this one
C) Jason should not reject the null hypothesis.
D) There was a large effect between the two groups.
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