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An insurance sales representative sells policies to 5 men, all of identical age and in good health. According to the actuarial tables, the probability that a man of this particular age will be alive 30 years hence is 2/3.
Find the probability that in 30 years all 5 men will be alive.
Test the claim of the engineering firm. Perform an appropriate hypothesis test, showing the necessary calculations and/or explaining the process used to obtain the results.
There are two telephone lines A and B. Let E1 be the event that line A is being used and E2 be the event that line B is being used
a mechatronic assembly is subjected to a final functional test. suppose that defects occur at random in these
Describe a where you might want to use a dummy variable in a multiple regression. What would the dummy variable buy you in that situation?
Downs and Abwender (2002) found neurological deficits in soccer players who are routinely hit on the head with soccer balls compared to swimmers, who are also athletes but who are not regularly hit in the head. Is this an example of an experimenta..
test for single mean.according to one investigators model the data are like 400 draws made at random from a large box.
Obtain descriptive statistics and graphic displays for these salt-taste indices. Do the indices appear to be normally distributed? Why or Why not? Compute the sample mean for this index, and obtain 95% CIs about the point estimate.
What does this story say about hypothesis testing and research? What is the likelihood of this happening? There are number of safeguards in place so this should not happen.
You can just switch on the heater of your swimming pool / sauna / living room etc. But if you want to be calculate what time you should switch it on
Find the sample mean and sample standard deviation for the amount of unspent money returned at the end of the day.
If there is a significant difference between proportions of females and males who plan to vote for the incumbent president. what is the p value of the test.
q1. a small town has a population of 20000 people. among these 1000 regularly visit a popular local bar. a sample of
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