uppose that the percentage annual return you obtain when you invest a dollar in gold or the stock market is dependent on the general state of the national economy as indicated below. For example, the probability that the economy will be in “boom” state is 0.15. In this case, if you invest in the stock […]
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The prizes that can be won in a sweepstakes are listed below together with the chances of winning each one: $5900 (1 chance in 8600); $2700 (1 chance in 5000); $600 (1 chance in 4800); $200 (1 chance in 2500). Find the expected value of the amount won for one entry if the cost of […]
Regression The purpose of Least Squares Regression is to find an appropriate linear model for two quantitative variables in order to make valid predictions. We have gathered data on the heights of of fathers and sons measured in inches. We would like to use the height of the father to predict the height of the […]
Good evening, How do I accomplish these tasks? Critically evaluate the two scenarios you selected based upon the following points: Critically evaluate the sample size. Critically evaluate the statements for meaningfulness. Critically evaluate the statements for statistical significance. Based on your evaluation, provide an explanation of the implications for social change. Scenario 1 A results […]
In the following Poisson probability distribution the potholes on a major highway in the city of Warwick occur at a rate of 1.8 per mile. Compute the probability that the number of potholes on a selected highway is at most three
To determine whether a metal lathe that produces machine bearings is properly adjusted, a random sample of 25 bearings is collected and the diameter of each is measured.a. If the standard deviation of the diameters of the bearings measured over a long period of time is 0.001 inch, what is the approximate probability that the […]
The weights of 500 american men were taken and the sample mean was found to be 194 pounds with a standard deviation of 11.2 pounds. What percentage of men have weights between 175 and 2235 pounds?
If a $52,500 loan was made on a property, and this was equivalent to 70% of the appraisal value, what was the amount of the appraisal value?
