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Public Policy and Political Science
Early in 2013, a political report indicated that 86% of Americans disapprove of the job Congress is doing. In a poll of 1000 Americans during Summer 2013 by NBC News, 830 said they disapprove of the job Congress is doing.
Is there any evidence to suggest that the proportion of Americans who disapprove of the job Congress is doing has decreased? Use a = 0.01.
A railway company operates a number of different services. One of these connects two cities and the journey time is assumed to be normally distributed with a mean of 125 minutes and a standard deviation of 5 minutes.
Computing the probability values using normal distribution - Find the probability that a regular rat (without the supplement) would solve the maze with a score less than or equal to X = 24 errors?
Interpret the slope of the line in this context.- Interpret the y-intercept of the line in this context.- What heating cost does the model predict for a month that averages 10°?
Translate the following arguments into symbolic form and use the first four rules of inference to derive the conclusion of each.
Determine the minimum sample size required in order for you to be confident that your evaluate is within of? Use value for population standard deviation of scores on this subsection.
the revenues of the top eleven personal computer manufacturers are given in hundred millions15 17 23 26 27 35 72 88 91
a) What is the value of the sample proportion p? b) What is the standard error of the sample proportion?
Draw suitable distribution curve indicating position of the TS and CV.
If the input to a linear filter is a random telegraph process with zero-crossings per second and an amplitude A ,determine the output PSD.
Calculate power of test if researcher uses a sample of n = 16 individuals.
for a particular company the number of sick days used by employees had a mean of 7 and a standard deviation of 2.a. a
What is the appropriate procedure to test a significant difference in means between the two groups? Use the critical -value method.
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