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There a flu epidemic that is spreading across SF County. You are a principle and are in charge of 32 teachers. You want to plan ahead and be able to estimate how many substitute teachers the school may need during this epidemic. The probability that a San Francisco resident will become ill is 0.23. We are interested in the number of High School teachers that will become ill.
(a) What is probability that 5 teachers will get the flu?
(d) What is the probability that at least 2 teachers will get the flu?
(e) What is the expected number of teachers that will become sick? How many substitute teachers will you have ready during the flu epidemic? Why?
Find the probability and mean and standard deviation for given data under Binomial distribution.
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At 0.05 level of significance, is there evidence of noteworthy difference in variation in sales among different aisle locations?
Following sample data shows the weekly closing price of ABC stock. Compute the sample mean and variance from this data set.
The registrar of a college with a population of N=4,000 full-time students is asked by the president to conduct a survey to measure satisfaction with the quality of life on campus.
A researcher discovers the number of parking tickets that a group of students have received during their driving careers. Twenty students reply and they have received between 9 and 20 parking tickets.
Summarize the relationship between sample size and confidence level.
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Compute a 90 percent confidence interval for the difference among the two population proportions. The CEO of the company would like to find out if Canadians.
In ANOVA, which of the following is not affected by whether or not the population means are equal?
Findout probabilities utilizing standard normal distribution. If the debt is normally distributed with a standard deviation.
A fair die is rolled nine times. What is the probability that an odd number (1,3 or 5) will occur less than 3 times?
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