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Decisions about alpha level may be different, especially as it relates from hard sciences to social sciences. For example, a medical trial for cancer treatments conducts their statistical tests at .0001 - so for every 1 out of 10,000 patients, there may be issues, sickness or even death. For social science, we use alpha .05. We are comfortable with performing research, for example, on students. So we are satisfied with losing 5 out of 100 students or having our results being incorrect 5 out of 100 times. Do you agree with these alpha levels? Why or why not? What if your child's education and the teacher assigned to him/her would be successful 95 out of 100 times?
a) How much lower is the risk of a heart attack for those who took aspirin in the study?
(a) At the 5 percent level of significance, does this sample prove a violation of the guideline that the average patient should pay no more than $250 out-of-pocket? State your hypotheses and decision rule. (b) Is this a close decision?
In order to run a linear regression, the following assumption(s) have to be met:
To determine whether having relationship with the opposite sex in college is detrimental to one's grade, the following grade point averages of 10 students were.
a. Determine the state-transition diagram for the process. b. Give the transition probability matrix for the process.
The time, in minutes, necessary to perform a certain task has the uniform [5, 9] distribution. Write the probability density function of this random variable.
Based on sample data, the 95% confidence interval for the population mean is from $150 to $250.
What are the ways that IT can help comply with legal requirements and social responsibilities surrounding the sales of alcohol?
for each of the following situations indicate whether anova is appropriate if not appropriate the reason why not and if
the theoretical probability of undesirable side effects resulting from taking grebex is 2 in 19. if 570 people take
X(t) is a wide sense stationary stochastic process with autocorrelation function RX (τ ) = 10 sin(2π1000t)/(2π1000t). The process Y(t) is a version of X(t) delayed by 50 microseconds: Y(t) = X(t - t0) where t0 = 5 × 10-5s.
Do you think that an "Ethics Bowl" competition at your institution would be useful in discussing the issues of professional ethics? Why or why not?
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