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## Two competing headache remedies claim to give fast-acting relief. An experiment was performed to compare the mean lengths of time required f

Question

Two competing headache remedies claim to give fast-acting relief. An experiment was performed to compare the mean lengths of time required for bodily absorption of brand A and brand B headache remedies. Twelve people were randomly selected and given an oral dose of brand A and another 12 people were randomly selected and given an oral dose of brand B. The lengths of time in minutes for the drugs to reach a specified level in the blood were recorded. The mean and standard deviation for brand A was 21.8 and 8.7 minutes, respectively. The mean and standard deviation for brand B was 18.9 and 7.5 minutes, respectively. Past experience with the drug composition of the two remedies permits researchers to assume that both distributions are approximately Normal. Let us use a 5% level of significance to test the claim that there is no difference in the mean time required for bodily absorption.

Required:

Find or estimate the p — value of the sample test statistic.

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Mathematics
3 years
2021-08-20T21:48:50+00:00
2021-08-20T21:48:50+00:00 1 Answers
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## Answers ( )

Answer:Step-by-step explanation:GivenBrand ABrand BRequiredDetermine the test statistic (t)

This is calculated as:Calculate s using:The equation becomes:So: