b The desired margin of error is 0 06 CHER You may need to use the appropriate appendix table or technology to answer this question The U S Energy Information Administration US EIA reported that the average price for a gallon of regular gasoline is 2 94 The US EIA updates its estimates of average gas prices on a weekly ba Assume the standard deviation is 0 25 for the price of a gallon of regular gasoline and recommend the appropriate sample size for the US EIA to use if they wish to report each of the following margins of error at 95 confidence Round your answers up to the nearest whole number a The desired margin of error is 0 10 c The desired margin of error is 0 04 PRACTICE ANOTHER