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The estimate of the population proportions is to be within plus or minus .10, with a 95 percent level of confidence. The best estimate of the population proportion is .15. How large a sample is required?
A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information.
if z is a standard normal random variable the area between z 0.0 and z 1.20 is 0.3849 while the area between z 0.0
Specify the appropriate null and alternative hypotheses if we wish to test the research hypothesis that the mean GHQ score for all employed men exceeds 10.
Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. What is the probability that Person A was given a vitamin tablet?
q1. what are the main difference between the frequency distribution of continuous data and discrete data.q2. how would
The time required to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions. a) What is the probability of completing the..
Assume that increasing and decreasing allergic reactions are equally likely if the training has no effect. Use alpha = .05
Prove that if R is commutative ring and N=(a1,a2,..am) where each ai is a nilpotent element, then N is a nilpotent ideal, i.e N^n=0 for some positive integer n.
If W denotes the total number of spaces one moves under these special conditions, find the mean and standard deviation of W.
Describe the population of interest and calculate the numerical value of the statistic that that the EPA will use to estimate p. Construct a 95% confidence interval for the proportion of Americans who live in neighborhoods with acceptable levels of ..
Illustrated significant negative relationship between amount of homework assigned and student attitudes. Determine the explanatory variable and explain the response variable?
The Court of Appeals erred in stating that petitioners'regression analyses were "unacceptable as evidence of discrimination", because they did not include all measurable variables thought to have an effect on salary level.
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