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Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000. Suppose that one such poll asks voters how they feel about the President's handling of the crisis in the financial markets. The results show that 575 out of the 1280 people polled say they either "approve" or "strongly approve" of the President's handling of this matter. Based on the sample referenced above, find a 95% confidence interval estimate for the proportion of the entire voter population who "approve" or "strongly approve" of the President's handling of the crisis in the financial markets.
Now, here's an interesting twist. If the same sample proportion was found in a sample twice as large-that is, 1150 out of 2560-how would this affect the confidence interval?
What variables might explain or predict an outcome in your department or life? If you generated a regression equation, how would you interpret it and the residuals from it?
Test the null hypothesis that the slope coefficient is 0 versus the alternative hypothesis of greater than 0 using the probability of type 1 error equal to 0,05 and determine the two-sided 95% and 99% confidence intervals. the simple regression m..
Find the inverse transform and find the Laplace transform - Express the following function in terms of unit step functions
question know the different type of taxes and their rates in spokane wa. also describe the tax rates that individuals
Determine the least number of terms of the Maclaurin series required to get an absolute true error of at most 10-6 in the calculation of sin(0.1).
john fixx a master plumber is considering a five year investment plan using the 2200 windfall from his last job in
Find the solution of the exact differential equation and separable differential equations
Given a graph, an independent set, is a collection of nodes which have no edges among them. Thus, in the following graph,the nodes B, D, and E form an independent set because there are no edges connecting one of them to the other two.
Analyze the data with MegaStat®, StatCrunch®, Microsoft® Excel®or other statistical tool(s), including: Descriptive stats for each numeric variable
A theater owner has found that 6% of patrons don't show up for performance that they bought tickets for. If theater has 100 seats, determine the probability that 8 or more patrons won't show up for sold-out performance.
Find the enthalpy of steam at 0.4 MPa and 0.7 dryness and determine the amount of heat required to convert 4Kg of water at t=38 degrees C into dry saturated steam at 1 MPa gauge pressure
Find the Laplace transform and also find the inverse Laplace transform
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