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A firm plans to hire 100 employees during the year. It expects that 25 of these employees will obtain graduate degrees within the next 5 years of being hired. In addition, 35 employees will leave the firm within 5 years. Of these, 18 will have obtained graduate degrees.
1. What is the probability that a newly hired employee will obtain a graduate degree and will leave the firm in the next 5years?
2. What is the probability that a newly hired employee will not obtain a graduate degree in the next 5 years?
3. What % of the new employees hired this year will have left the firm or obtained a graduate degree within the next 5 years?
Carry out a test of hypothesis on each of regression coefficients. Could you delete any of the variables?
a) Set up the null and alternative hypotheses, and perform the hypothesis test. b) Does the jury selection system appear to be fair?
History suggests that the average number of hurricanes formed during a year is 6.0 hurricanes. Find the probability of at most three hurricanes being formed during a randomly selected year.
The average number of typos on one page of a manuscript is 8. What is the probability that 4 to 6 type appear on 2 pages of the manuscript? Imagine Poisson distribution.
A sample of 23 European countries found that variance of life expectancy was 7.3 years. Determine the 95% confidence interval estimate for variance of life expectancy in Europe?
What is the purpose of a survey? What are three examples of a survey and what potential purpose could each be used for? How can one work to ensure the participants of a survey will have their responses kept private?
CCI is unable to adjust the mean of the filling process. However, it is able to adjust the standard deviation of the filling process.
Determine the mean annual amount spent on household consumption per family with a sample of 100 families, an average amount of $8,000 spent, and if the population standard deviation is $500,
Determine and plot the probability mass function and probability distribution function of the contract award amount (in millions of dollars).
If 1 man aged 18-24 is arbitrarily chosen, determine the probability that his serum cholesterol level is between 165 and 200.
Here are the DMS odor thresholds for 10 untrained students:
The amounts dispensed by a cola machine follow the normal distribution with a mean of 7 ounces and a standard deviation of 0.10 ounces per cup.
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