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Show the odds of any two individuals having the same birthday are slightly greater than 1:1 (1:.9732 actually). Assume there are 23 individuals in the room and 365 days in a year ignoring leap year.
Find a 95% confidence interval for the difference in the proportion of deaths between the streptokinase and the control group.
For which of given variables must a "two tail" t-test be applied?
A confidence interval increases in width as:
Must you assume that the population amount of paint per can is normally distributed here? Explain
How many days should be considered if a 95 percent confidence is used and the estimate is to be within one hundred dollars?
Find the difference between the actual Y value and predicted Y value for each individual, square the differences, and add the squared values to obtain SS residual.
A random sample of students is selected, and each one is asked to try first brand A and then brand B, or vice versa with the order determined at random.
Construct ogive cure and numerical measures for the discrete data.
Discuss the properties of a normal distribution. Why are there infinite possible normal distributions? Why should one assume that sample data represents a population distribution?
Two hundred raffle tickets are sold. Your friend has 5 people in her family who each bought two raffle tickets. What is the probability that someone from her family will win the raffle?
Ace Machine Works estimates that the probability its lathe tool is properly adjusted is 0.8. When the lathe is properly adjusted, there is a 0.9 probability that the parts produced pass inspection.
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
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