SOLUTION: Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 18 seconds for one particular maze. A researcher thin
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Question 1061708: Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 18 seconds for one particular maze. A researcher thinks that a loud noise will cause the mice to complete the maze faster. She measures how long each of 10 mice takes with a noise as stimulus. The sample mean is x = 16.5 seconds. What is the alternative hypothesis for the test of significance?
a) Ha: μ ≠ 16.5
b) Ha: μ < 16.5
c) Ha: μ ≠ 18
d) Ha: μ < 18
e) Ha: μ > 18 Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! The mean is 18 is the Ho
Ha is the mean is not 18 (a two way test with a greater critical value, better than a one way test, unless one is convinced the results will be in one direction). The sample is never part of the hypothesis.
C
