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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a random sample of 125 large retailers,90 used regression as a method of forecasting.In an independent random sample of 160 small retailers,80 used regression as a method of forecasting.
-A random sample of 100 men contained 63 in favor of a state constitutional amendment to retard the rate of growth of property taxes.An independent random sample of 100 women contained 55 in favor of this amendment.The confidence interval 0.023 < Px - Py < 0.295 was calculated for the difference between the population proportions.What is the confidence level of this interval?

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nx = 100, blured image
x = 0.63,ny = 100, blured image
y = 0.55
Th...

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