Many people think that a national lobby's successful fight against gun control legislation is reflecting the will of a minority of Americans. A previous random sample of 4000 citizens yielded 2250 that are in favor of gun control legislation. How many citizens would need to be sampled if a 90% confidence interval was desired to estimate the true proportion to within 5%?
Answer to relevant QuestionsAn insurance company writes policies for a large number of newly-licensed drivers each year. Suppose 40% of these are low-risk drivers, 40% are moderate risk, and 20% are high risk. The company has no way to know which group ...A researcher developed the following multiple regression model to explain the variation in hours worked by married women.H = β0 + β1X1 + β2X2 + β3X3 + β4X4 + εWhere, H = hours worked per month, X1 = age, X2 = education ...How important is saving for a household and the economy? How much should be saved?Describe a work report that you are required (or have been required) to complete on a regular basis. How would you present the information related to this report in a visual manner? Would a visual presentation enhance its ...The Oil Price Information Center of greater Houston reports the mean price per gallon of gas is $3 with a population standard deviation of .18. Assume a random sample of 40 gasoline stations is selected and their mean cost ...
Post your question