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A person's blood pressure is taken 8 times a day. the probability distribution of each of his readings had a mean of 128 and a standard devation of 9. what is the probability of the sample mean that exceeds 140?
A sample proportion is calculated from a sample size of 394. How large of a sample would we need in order to decrease the standard error by a factor of 9?
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
Respond to the questions? In other words, what is the probability that the sample proportion p will be at least 75/300 = 0.25?
Determine the probability that computer will fail within 12 months?
The average burglary rate for a particular jurisdiction has been 311 per year with a standard deviation of 50. What is the likelihood that the number of burglaries in the next year is between 250 and 300?
Use this information to compute a 95% confidence interval for average number of credit cards carried by students.
Calculate the expected loss to each person prior to and subsequent to entering into a pooling arrangement. What happens to the standard deviation of the distribution of losses to each individuals subsequent to the pooling arrangement?
What is ethics? Ethics is basically concerned with the Moral obligations, responsibilities and social justice of the world. It invokes the idea of "how people should act".
A pie chart shows the market shares of cola products. The "slice" for Pepsi-Cola has a central angle of 90 degrees. What is its market share?
what statement should be made about the null and alternative hypothesis based on sample data and significance level?
One of the herpetologists fears that pollution might be affecting the natural growth of the pythons. Do you think this sample result is unusually small? Explain. Show work.
If the confidence interval limits do not include age below 20 does it mean that motor cyclists under the age of 20 rarely die in crashes?
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