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From sample of 100 patients in a statewide drug rehabilitation program, you've determined that 20% of the patients were able to find employment within three months of entering the program. Estimate the percentage of patients throughout the program who were able to find employment within three months. Develop your estimate on the basis of a 99% confidence interval.
Explain how the power of hypothesis test is influenced by each of the following. Assume that all other factors are held constant. Increasing the alpha level from .01 to .05.
If the frequency of the trait has not changed, what's the probability he finds the trait in none of the 12 frogs?- at least 2 frogs?
the probability that a student will pass an exam is 0.8. if we consider a group of 20 students what is the probability
What information would you need to determine the probability that postage forone particular week will exceed $400? Why wasn't this information required for(a)
Compare these with the percentages that should be expected from a bell-shaped distribution. Does it seem plausible that these data came from a bell shaped.
What is the probability that their bid will be accepted?- Suppose their bid is accepted. What is the probability that it is for $20?
compute the correlation coefficient for the data belowx values -5 -1 1 2y values 3 -1 -3 3a 0.641b 0.453c - 0.411d -
body mass index for newborns follows a normal distribution with a mean of 14 and standard deviation of .95. a doctor
If the test is to be carried out at α = 0.05, what will be the power of the test if the true percentage of female top executives is 4%?
The accomanying table is a one way, independent groups ANOVA summary table with part of material missing.assuming an equal number of subject are there in each group. What is the value of F crit, using alpha 0.05?
When are differences (between one time period and another, between different production lines, etc.) between average or actual results important?
A dean of men wishes to estimate the average cost of the freshman year at a particular college correct to within $500, with a probability of .95.
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