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There are 20,000 eligible voters in York County, South Carolina. A random sample of 500 York County voters revealed 350 plan to vote to return Louella Miller to the state senate.
a. Construct a 99% confidence interval for the proportion of voters in the county who plan to vote for Ms. Miller.
Decision making using the Transportation method.
In the accompanying table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is probability distribution. If it is a probability distribution, find its mean and stand..
The manufacture of a new compact car claims the miles per gallon (mpg) for the gasoline consumption follow a normal distribution with mean of 25.9 mpg and standard deviation of 9.5 mpg . if 36 such cars are tested , what is the probability the ave..
In a large section of a statistics class, the points for the final exam are normally distributed with a mean of 72 and a standard deviation of 9. Find the lowest score on the final exam that would qualify a student for an A, a B and a C.
the admissions staff asked graduates outside their immediate area and outside the state to help with recruiting. in
Assume that the population is normally distributed. Can we conclude, at the level of significance, that the mean lifetime of light bulbs made by this manufacturer differs from months?
For some positive value of Z, the probability that a standard normal variable is between 0 and Z is 0.3770. Find value of Z? For some value of Z, the probability that a standard normal variable is below Z is 0.2090. Find value of Z?
Demonstrates clearly and fully the ability to use Excel to perform the correlation for the data set.
Find the probability that a value randomly selected from this population will have a value between 90 and 130.
The local operations manager for the IRS must decide whether to hire 1, 2, or 3 temporary workers. He estimates that net revenues will vary with how well taxpayers comply with the new tax code.
For a candidate to win in a congressional district, he has to have won over half of the vote. The Republican candidate takes a poll to assess his chances in a two-candidate race.
you have learned some of the basic terminology of statistics. please propose a study and write a description of the
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