Mathematics, 17.12.2019 21:31 rafamoreura
An investigator conducts an experiment involving the effects of three levels of a drug on memory. 12 subjects are randomly assigned to one of three conditions (0mg, 15mg, 30mg). a different drug level is administered in each condition. memory is measured 10 minutes after each subject receives the drug. the following scores are recorded. the higher the score, the better the memory.
0mg drug
6, 10, 8, 12
15mg drug:
9, 7, 9, 13
30mg drug:
13, 15, 14, 19
2) ss between, df within, df between, df total, ms within, ms between, f obt
9)using α = 0.05, fcrit =
10)using α = 0.05, what do you conclude?
Answers: 1
Mathematics, 21.06.2019 19:20
1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?
Answers: 2
Mathematics, 21.06.2019 22:50
Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables
Answers: 3
Mathematics, 21.06.2019 23:00
Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?
Answers: 1
An investigator conducts an experiment involving the effects of three levels of a drug on memory. 12...
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