The effect of drugs and alcohol on the nervous system has been the subject of co

Question

The effect of drugs and alcohol on the nervous system has been the subject of considerable research recently. Suppose a research neurologist is testing the effect of a drug on response time by injecting 100 rats with a unit of dose of the drug, subjecting each to neurological stimulus, and recording its response time. The neurologist knows that the mean response time for rats not injected with the drug (the "control" mean) Is 1.2 seconds. She wishes to test whether the mean response time for the drug-injected rats differs from 1.2 seconds. Use this info for questions 25, 26,27, 28 & 29 What is the null hypothesis, H_o mu notequalto 1.2 mu 1.2 What is the alternative hypothesis, H_o mu notequalto 1.2 u 1.2 Classify the hypothesis test as two-tailed, left-tailed, or right-tailed. two-tailed left-tailed right-tailed middle-tailed Under what conditions would a type 1 error be committed? If the hypothesis test lead to non-rejection of H_o when in fact H_o was false. If the hypothesis test lead to rejection of H_a when in fact H_a was true. If the hypothesis test lead to rejection of H_o when in fact H_o was true. If the hypothesis test lead to non-rejection of H_o when in fact H_o, was true. Under what, conditions would a type U error be committed? If the hypothesis test lead to non-rejection of H_o when in fact H_o was false. Ifthe hypothesis test lead to rejection of H_a when in fact H_a was true. If the hypothesis test lead to rejection of H_o when in fact H_o was true. If the hypothesis test lead to non-rejection of H_o when in fact H_o was true.

Explanation / Answer

Solution : ( 25 )

Answer : C )

The null hypothesis H0:

= 1.2

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Solution : ( 26 )

Answer : A )

The alternative hypothesis Ha:

1.2

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