Mathematics, 18.10.2019 20:00 bermudezs732
The u. s. energy information administration (us eia) reported that the average price for a gallon of regular gasoline is $3.95. the us eia updates its estimates of average gas prices on a weekly basis. assume the standard deviation is $.24 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 up to the next whole number.
a. the desired margin of error is $.10. the appropriate sample size is
b. the desired margin of error is $.06. the appropriate sample size is
c. the desired margin of error is $.04. the appropriate sample size is
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