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Two random samples are taken, with each group asked if they support a particular candidate. A summary of the sample sizes and proportions of each group answering yes'' are given below:
Pop. 1:n1=82, p^=0.809
Pop. 2:,n2=89 p^2=0.61
Suppose that the data yields (0.0804, 0.3176) for a confidence interval for the difference p1?p2 of the population proportions. What is the confidence level? (Give your answer in terms of percentages.)
Confidence Level?
according to runzheimer international a typical business traveler spends an average of 281 per day in chicago. this
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
consider the following joint discrete probability mass function pmfpxy 0.1 for xy 11 21 12 and 220.2
a distribution has a mean of 110 and a standard deviation of 20 if nothing is known about the shape of distribution
suppose x has a poision distribution with a mean of .4. determine the following probabilitiesa
a baseball player hit 67 home runs in a season. of the 67 home runs 20 went to right field 22 went to right center
Create a frequency distribution and histogram for this variable, and calculate the mean, median, and standard deviation. Describe how BankTen compares with other banks in terms of profits per employee.
accounting procedures allow a business to evaluate their inventory at lifo last in fi rst out or fifo first in first
Develop a model to predict the selling price of homes based on assessed value
Assume that waiting times are approximately normally distributed. Construct a 98% confidence interval for the population mean of waiting times.
Sketch the normal curve and shade the area under the curve that is the answer to the question do this on scratch paper and provide a one-sentence description for the assignment.
Analyze the above alternatives with utility function U(x) = 0.0085x - 6.725(ln(x)), where x is total/net wealth: If Nancy has $5,600, which alternative he should choose among A, B or C?
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