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Question: Mistaken poll. A local TV station conducted a "Pulse Poll" about the upcoming mayoral election. Evening news viewers were invited to phone in their votes, with the results to be announced on the latenight news. Based on the phone calls, the station predicted that Amabo would win the election with 52% of the vote. They were wrong: Amabo lost, getting only 46% of the vote. Do you think the station's faulty prediction is more likely to be a result of bias or sampling error? Explain.
find the mean variance and standard deviation of the binomial distribution with the given values of n and p.n90
the yearly tuition costs x in hundreds of dollars for six state universities are given in the table below. for each
At a small company, the head of human resources wants to examine salary to prepare annual reviews. He selects 28 employees at random with job types
What is the probability of selling your home for the median price in your city (My zip code is 91730 Alta Loma). How has the graphical display of data changed in the last 10 years? How will it change in the next 10 years?
Statistics is science of conducting studies to: Solve a system of equations.
1. A developer wants to claim that his new "green" home design results in lower electricity use than in conventional homes. His 2,000 square foot model home uses 1,200 kilowatt hours per month on average.
To maintain an adequate supply of both models, the manufacturer would like the number of model A tubs made to be no more than 5 times the number.
suppose that you want to estimate the mean ph of rainfalls in an area that suffers from heavy pollution due to the
When a researcher has two samples with two means, one of the assumptions for two samples is independence of between the two samples. What does this mean? What happens if the independence assumption is violated?
find the present value of the investment.funding 100 withdrawls at the end of each month for 5 years at 4.75 intrest
Last year, television station WXYZ's share of the 10 P.M. news audience was approximately equal to, but not greater than, 25%. The station's management believes (and would like to claim for advertising purposes) that the current share is higher th..
The flashlight batteries produced by one of the northern manufacturers are known to have an average life of 60 hours with a standard deviation of 4 hours. Use Chebyshev's theorem to answer the following questions.
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