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IQ sores in a population are normally distributed with a mean of 100 and a standard deviation of 15. If a sample of size 225 is drawn from this population, what is the probability that its mean lies between 100 and 102?
Individual loss amounts (ground up) this year follow an inverse Weibull distribution with τ= 3 and expected value 1000. Next year you con?fidently expect loss amounts to in?ate by 10% uniformly across the board.
Determine the least squares equation. According to this information, what are the estimated sales for 2008 and 2009?
Reis, Inc., a New York real estate research firm, tracks the cost of apartment rentals in the United States. In mid-2002, the nationwide mean apartment rental rate was $895 per month
epa studies of fuel consumption indicate compact car mileage to be normally distributed with a mean of 25.5 miles per
The average weight of the sample is 10.2 g. From past shipments, it is known that the standard deviation of weight among mice is 2 g. Find a 95% confidence interval for the mean weight of all the mice in the shipment.
question 1suppose the value of investment properties is normally distributed witha mean of 550000 and a standard
What is the difference between the mean of the two groups? What is the difference in the standard deviation?
Convert the binary response variable to a 0/1 continuous response and try some of the standard smoothing methods, such a spline fit to investigate the general form of the response. Does it look logistic?
mean is 100 and sd is 16. doug has an iq of 76. what proportion of people have a higher iq than
At the 0.05 level of significance, do the samples provide sufficient evidence to indicate that on the average, fewer consumers prefer a new product when the spokesperson is male?
What are the differences between regression and correlation analysis? What is correlation? Does correlation prove causation? Why or why not? Explain and provide examples to support your explanation.
the world series of baseball is to be played by team a and team b. the first team to win 4 games wins the series out
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