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In the table in the textbook on page 511 you will find survival times in months since diagnosis for 10 AIDS patients suffering from concomitant esophageal candidiasis, an infection due to Candida yeast, and cytomegalovirus, a herpes infection that can cause serious illness. Censored observations are denoted by a plus sign.
a. How many deaths were observed in this sample of patients?
b. Use the product-limit method to estimate the survival function S(t).
c. What is S(1), the estimated probability of survival at one month? What is the estimated probability at 5 months? At 6 months?
d. Construct a survival curve (do not submit) based on the product-limit estimate.
a time for the 100-meter spring of 15.1 seconds at a school where the mean time for the 100-meter sprint is 17.6
In an article in Accounting and Business Research, Carslaw and Kaplan investigate factors that in?uence "audit delay" for ?rms in New Zealand.
Can you please say which formula you're using if any. It's hard for me to understand problems with percents. We have just covered Bayes rule, conditional probability, multiplicative rule, additive rule, complement and independence.
use the appropriate normal distribution to approximate the resulting binomial distribution.the manager of madison
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a statistics practitioner would like to estimate a population mean to within 50 units with 99 confidence given that the
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Suppose that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more?
A large internet retailer, is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders. The lead times are reported in days.
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