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A mainframe computer in a university crashes on the average 0.71 time in a semester.
a. What is the probability that it will crash at least two times in a given semester?
b. What is the probability that it will not crash at all in a given semester?
c. The MIS administrator wants to increase the probability of no crash at all in a semester to at least 90%. What is the largest µ that will achieve this goal?
irwin textile mills produces two types of cotton cloth-denim and corduroy. corduroy is a heavier grade of cotton cloth
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What is the Z score associated with an attitude score of 27.9 and what statistical test would you use, and why - Why use a standard error rather than a standard deviation in your test?
Assume the probability that a person has the desease is 0.09 for all people, independently of each other, and compute the expected number of tests necessary for the entire group of 154 people.
without regard to order in how many way can you select four individuals from a group of seven? please show
a. Why would an exporter provide financing for an importer? b. Is there much risk in this activity? Explain
life expectancies for men and women were measured by country. it was found that the average male life expectancy was
In the Cash Now lottery game there are 10 finalists who submitted entry tickets on time. From these 10 tickets three grand prize winners will be drawn.
Test the claim that the proportion of students in this district who use computers in school is at least 80%. State the correct hypotheses.
Use a 0.05 level of significance (? =.05) to determine whether or not the percentage of Atlanta CEOs who have advanced degrees is significantly less than the national percentage.
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