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Administrators at a university are planning to offer a summer seminar. It costs $3000 to reserve a room, hire an instructor, and bring in the equipment. Assume it costs $25 per student for the administrators to provide the course materials. If we know that 20 people will attend, what price should be charged per person to break even?
Assume the arrival of these emails i3 approximated by the Poisson distribution.
Polls showed the two main candidates in 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has a margin of error of less than 1%.
Find a 90% confidence interval for the population average µ of the percentage of hospitals providing at least some charity care.
Determine the values of mean M and standard deviation s for original sample?
If the population mean was $1047 in the previous year, does the evidence suggest that expenditure this year has significantly changed?
Test whether there is significant difference in the test anxiety level of the three groups using nonparametric test.
Suppose the weights of full boxes of a certain kind of cereal are normally distributed with a population standard deviation of 0.29 ounces.
Mr. Connors philosophy class has 99 students, classified by academic year and gender, as illustrated in the table below. Mr. Connor randomly chooses one student to collect yesterday's work. What is the probability that he selects a male, given tha..
We code middle-aged Americans as 1 and senior citizens as 0, the logistic regression model for senior citizens
Find out the probability that the return for common stocks will be more than 0%.
Basic Statistics problem
Expectation and variance of a random variable and let X be a random variable with the following probability distribution:
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