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Fitness.
Are physically fit people less likely to die of cancer? An article in the May 2002 issue of Medicine and Science in Sports and Exercise reported results of a study that followed 25,892 men aged 30 to 87 for 10 years. The most physically fit men had a 55% lower risk of death from cancer than the least fit group.
Given the prededing, as a function of i, what is the probability that any of the remaining people have the disease.
1.researchers compared two groups of competitive rowers a group of skilled rowers and a group of novices. the
the mean annual salary of public classroom teachers is 49000. assume the standard deviation is 9200. do the following
Suppose the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with three children will have two boys and one girl.
A certain company relies heavily on phone orders. Suppose past records show that R% of all incoming phone calls to this company are orders from customers.
First k is repeated (possibly by using some of the first k flips). Show that the expected number of additional flips after the initial k is 2^k?
By using 0.05 level of significance, is there any evidence of difference in mean life of bulbs produced by two kinds of machines?Calculate p-value and interpret its meaning.
A random sample of 25 selected from a shipment indicates a sample average of 7.31 inches. Set up a 95% confidence interval estimate of the true average diameter of the gyroscope in this shipment. Does the population of gyros need to have a diamete..
Baseball games are uniformly distributed between 160 minutes and 240 minutes. What is the probability that a 9-inning game will last between 180 and 220 minutes?
Test of product quality using human inspectors can lead to serious inspection error problems. To evaluate the performance of inspectors in a new company, a quality manager had a sample of 12 novice inspectors evaluate 200 finished products.
This problem has to do with graphical plotting and computation for certain distribution. Please mention a detailed response to the questions listed with appropriate graphical and statistical data representation(s).
Create a 95% confidence interval for the population mean days absent for sickness based on this sample. Select the answer closest to your results.
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