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Show all steps for full credit. When testing the hypothesis please use a significance level of...

Show all steps for full credit. When testing the hypothesis please use a significance level of .05.

Forman wanted to know if a new drug increased the ability of rats to learn a difficult maze. One group of rats was given a drug 2 hours before the testing and the other group was given a placebo. The response measure is the number of trials required to learn the maze. Did the rats given the drug make fewer mistakes than those who were not given the drug?

               

  What is the Null hypothesis?

The new drug made no difference on the ability to learn the maze

The number of trials required to learn the maze

The new drug made a difference on the ability to learn the maze

The new drug increased the performance in rats

math   Statistics-And-Probability   
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Answer #1

Null hypothesis is the hypothesis of no difference. Hence, null hypothesis in the given scenario will be:

The new drug made no difference on the ability to learn the maze

Option A is correct.

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