Imagine you compare the effectiveness of four different types of stimulant to keep you awake while revising statistics using a one-way ANOVA. The null hypothesis would be that all four treatments have the same effect on the mean time kept awake. How would you interpret the alternative hypothesis?

At least two of the stimulants will have different effects on the mean time spent awake.
All four stimulants have different effects on the mean time spent awake.
Two of the four stimulants have the same effect on the mean time spent awake.
None of the above

The null hypothesis exposed leads to consider an alternative hypothesis that differs from the behavior of the 4 stimulants. In this case it is related to the effects on patients, since in practice at least one will present differences compared to the others, influencing the sleep time of consumers.

bratislava bratislava · Answer 2 · 2021-12-17T12:25:33+01:00

ANOVA is the one-way analysis of variance and is a technique that can be used to compare means of the signifying difference or not. The ANOVA includes the t and f test.

The null exposed lets to consider the alternative hypothesis that differs from the behavior of the 4 stimulants.

In this case, it is related to the effects on patients, since in practice least 1 will present differences compared to the others, influencing the sleep time of consumers.

Hence the option A is correct. At least 2 of the stimulants will have different effects on the meantime spent awake.

Learn more about the effectiveness of four.

brainly.com/question/17530449.