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1. A random sample of 100 observations from a Poisson distribution has a mean equal to 6.25. Construct an approxi mate 95 percent confidence interval for the mean of the distribution.
2. Say that a random sample of size 25 is taken from a binomial distribution with pa rameters n = 5 and p. These data are then lost, but we recall that the relative frequency of the value 5 was -fs . Under these conditions, how would you estimate p? Is this suggested estimate unbiased?
in a particular faculty 60 of students are men and 40 are women. in a random sample of 50 students what is the
We suggest that you use the graphical approach to CVP analysis to solve the following problem, but you may use any other method to find the answer.
the mean number of animals in a forest of a certain variety is 40 and the standard deviation is 4. a random sample of
Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
Based on your estimate of Equation #1, does experience have an impact on wages - can you improve upon this model? If yes, what does your new model tell you about the impact of experience on wages?
Sketch the normal curve and shade the area under the curve that is the answer to the question do this on scratch paper and provide a one-sentence description for the assignment.
a pair of fair six-sided dice are tossed independently of each other.a list the sample space of this experiment.b
During 2001, 61.3% of US households purchased ground coffee.These households spent an average of $36.16 on ground coffee during the year.
Airplaneflight during the last year. If we take a random sample of 40 adults, the probability is 0.37 that the sample proportion is greater than what number.
a 5-year prospecta 5-year prospective cohort study has just been completed. the study was designed to assess the
A sample of 60 night-shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the night shift larger?
This morning the office you are monitoring has eight office visits on the schedule. What is the probability that
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