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Provided an example of a research problem at any organization that would benefit from the employ of either descriptive statistics or probability distribution statistics. How do insurance companies use descriptive statistics and probability distributions to project health and auto insurance premiums? In regards to age, why is there an inverse relationship between the two premiums?
Make a forecast for 2004, using either the fitted trend model or a judgment forecast. Why is it best to ignore earlier years in this data set?
Can one conclude at a level of significance of .01 that the new ball has improved his game?
If the decision in the hypothesis test of population correlation is to reject the null hypothesis, what can we conclude about the population correlation.
For following two regressions describe and interpret major parts from regression output. write down the difference between two regressions?
Find the probability that 665 or fewer college students in the sample send and receive text messages with their phones? Is this result unusual?
In a distribution of sentence lengths in months like the following: 6, 12, 10, 18, 24, 360; which statistic would a researcher not want to report?
Suppose that a study based on a sample from a targeted population shows that people at a pizza restaurant are hungrier than people at a coffee shop. make an interference based on the results of the study.
Use this information to construct a probability table, and then calculate each of the following probabilities: P(foreign car)
The best estimator or appreciative of the population proportion is 0.45. How large must the sample be?
What is the probability that the first and the last ones on the EP are the relationship songs?
A sociologist wants to describe if the life expectancy of people in Africa is lesser than the life expectancy of people in Asia.
30% of households say they would feel secure if they had $50,000 in savings. you randomly select 8 households and ask them if they would feel secure if they had $50,000 in savings. find the probability that the number that say they would feel secu..
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