An experiment was designed to compare lengths of time that four
different drugs provided pain relief following surgery. The results
(in hours) are shown the table below
DRUG
A B C D
12 16 8 14
14 16 10 14
11 14 10 12
12 14 10
is there enough evidence to reject the null hypothesis that there is no significant
in lengths of pain relief for the four drugs at
alpha= 0.05
Answers: 3
Biology, 22.06.2019 06:30
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Biology, 22.06.2019 10:30
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Answers: 3
Biology, 22.06.2019 16:40
Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.
Answers: 1
Biology, 22.06.2019 23:30
Mendel made crosses between pure-breeding yâall pea plants with purple flowers and pure-breeding short pea plants with white flowers. the alleles for a yâall height and purple flowers were dominant. this cross is written a. ttpp x ttpp b. ttpp x ttpp c. ttpp x ttpp d. ttpp x ttpp
Answers: 2
An experiment was designed to compare lengths of time that four
different drugs provided pain relie...
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