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Life expectancies for men and women were measured by country. It was found that the average male life expectancy was 71.8 years with an SD of 7 years, and that the average female life expectancy was 77.4 with an SD of 7.3 years. Moreover, the correlation between male and female life expectancies was found to be 0.95. Use this information to estimate female life expectancy in a country where the male life expectancy is 62.8 years.
A certain police officer stops cars for speeding. The number of red sports cars she stops in one hour is a Poisson process with rate 4, while the number of other cars she stops is a Poisson process with rate 1.
Over the past few years, banks have strongly promoted online banking and the paying of bills online. In 2003, about 50% of internet users paid bills online.
Suppose you decided to switch from a 99 to a 95 percent confidence interval. Without performing any calculations, will the interval increase, decrease, or stay the same? Which f the values in the formula will change?
1 a legislative committee consists of 13 democrats 7 republicans and 3 independents. a delegation of 3 is selected to
The library is to be given 3 books as a gift. The books will be selected from a list of 16 titles. If each book selected must have a different title, how many possible selections are there.
article i chose httpwww.ncbi.nlm.nih.govpmcarticlespmc1516247pdfcalifmed00057-0028.pdffind an article on a web site
Historically, it is known that the score has a Normal distribution and a standard deviation of 180. Set up the null hypothesis and the alternative hypothesis. Calculate the test statistic and find the p-value.
Briefly identify and contrast the methods used by the psychoanalytic perspective, the humanistic perspective, and the trait perspective to assess personality.
a score that is 6 points below the mean corresponds to a z- score of z -0.50. what is the population standard
Using the following information, find the equation of the regression line, and predict the heart rate when 0.27 milligrams of the drug is used.
Determine the critical path probability that project will be completed within?
The shoppers are grouped in three age categories, under 30, 30 up to 50 and 50 and over. The data is summarized in the table. Let A be the event that a randomly selected shopper is under 30. Find the probability of A.
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