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The mean number of patients admitted per day to the emergency room of a small hospital is 3. If, on any given day, there are only 2 beds available for new patients, what is the probability that the hospital will not have enough beds to accommodate its newly admitted patients?
determine the present worth of a series of annual deposit of 1200 during years 5 through 14 and a series of withdrawals
The customer measured the tension of each and calculated the summary statistics. In order to conduct the test, the customer selected a significance level of Interpret this value.
Does this sample give sufficient evidence to conclude that self-esteem scores for group-participation adolescents are significantly different from those of general population? Use two-tailed test with α = .01.
In a random sample of 15 Americans 18 years old or older, find the probability that exactly 10 have read at least six books within the past year, Interpret these results.
The probability Mary will receive an A in a class is 0.70. Assuming independence, if she is taking 5 classes this semester, calculate the probability she will receive exactly 3 A's.
The length of time for one individual to be served at a cafeteria is a random variable having a lognormal distribution with a mean of 10 minutes and standard deviation of 2 minutes.
Explain the chi-square test of homogeneity and show the formula for the test statistics for the test of homogeneity. Describe a sign and test and show the six steps of the test-of-hypothesis procedure.
State the main points of the Central Limit Theorem for a mean. B. Why is population shape of concern when estimating a mean? What does sample size have to do with it?
A particular factory can only inspect 46 mice per hour with a standard deviation of 10. At alpha=0.02 company have reason to believe that these inspectors are slower than average?
Lab technicians at a major mdical lab can process an average of 400 blood samples a day with a standard deviation of 50 samples. The processing follows a normal distribution.
A random sample of stipends of teaching assistants in economics is listed below. Is there sufficient evidence at the alpha=.05 level to conclude that the average stipend different from $15,000? The data is listed below:
Use the binomial distribution in the Data Analysis add - in to simulate the distribution of men and women among the next ten arrivals at an emergency room, assuming that, on average, six people out of ten who arrive are men.
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