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Assignment
Question 1
Seventy percent of the students applying to a university are accepted. Using the binomial probability tables or Excel, what is the probability that among the next 18 applicants:
1. At least 6 will be accepted?2. Exactly 10 will be accepted?3. Exactly 5 will be rejected?4. Fifteen or more will be accepted?5. Determine the expected number of acceptances.6. Compute the standard deviation.
Question 2
Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 6.
1. What is the probability that a randomly selected exam will have a score of at least 71?2. What percentage of exams will have scores between 89 and 92?3. If the top 2.5% of test scores receive merit awards, what is the lowest score eligible for an award?
You are concerned that first administration of attitudes measure may create pretest sensitization, thereby directly affecting participants attitudes. Explain how you could redesign the experiment to see whether pretest sensitization occurred.
assume that the number of sick kids in a family is a discrete random variable x with probability function px
At a .05 level of significance, the Department of Transportation claims that there is no difference between the variation of federal highway money distributed to the northeastern states and the variation of federal money distributed to the central..
the t statistic indicates theselect onea. number of standard deviations a sample is from the population mean.b. number
A central university has a student population of 60,000. The university is interested in determining what proportion of them is in favour of a new grading system.
question suppose that in past years the average price per square metre for warehouses has been 322.80. a national real
during a 36 year period lighting killed 3239 people in the us. assume that the rate holds true today and is constant
How would you characterize the theatre lobby as far as its potential for audience socializing before and after the show and during intermission(s)?
In easy to understand language identify at least two pollutants that destroy the ozone layer. Discuss the origination of these pollutants and a plan for reduction.
assume that a simple random sample has been selected from a normally distribution population and test the given claim.
Level annual equivalence principle premiums are payable prior to failure.S how that for any nonnegative integer r, Var(rL) = 1/15.
International Diversification Explain how the Asian crisis would have affected the returns to a U.S. firm investing in the Asian stock markets as a means of international diversification. (See the chapter appendix.)
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