The Energy Information Administration reported that the mean retail price per gallon of regular grade gasoline...
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The Energy Information Administration reported that the mean retail price per gallon of regular grade gasoline was $3.60 . Suppose that the standard deviation was $0.10 and that the retail price per gallon has a bell-shaped distribution. NOTE: Please use empirical rule approximations for this problem. a. What percentage of regular grade gasoline sold between $3.50 and $3.70 per gallon (to 1 decimal)? b. What percentage of regular grade gasoline sold between $3.50 and $3.80 per gallon (to 1 decimal)? c. What percentage of regular grade gasoline sold for more than $3.80 per gallon (to 1 decimal)? |
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The Energy Information Administration reported that the mean
retail price per gallon of regular grade gasoline...
The Energy Information Administration reported that the mean retail price per gallon of regular grade gasoline...
The Energy Information Administration reported that the mean retail price per gallon of regular grade gasoline was $3.51 . Suppose that the standard deviation was $0.10 and that the retail price per gallon has a bell-shaped distribution. (Hint: You must use the empirical rule for this problem. ) a. What percentage of regular grade gasoline sold between $3.31 and $3.71 per gallon (to 1 decimal)? b. What percentage of regular grade gasoline sold between $3.31 and $3.61 per gallon (to...
The U.S. Energy Administration reported that the mean price for a gallon of regular gasoline in...
The U.S. Energy Administration reported that the mean price for a gallon of regular gasoline in the U.S, was $2.357. You are asked to test at a 06 level of significance whether the mean price for a gallon of gasoline in the Lower Atlantic states is different from the national mean. You sample 50 service stations in the Lowe determined the mean price for a gallon of regular gasoline was $2.343. The standard deviation for all stations in the lower...
%) 32.35x At one point the average price of regular unleaded gasoline was $3.64 per gallon....
%) 32.35x At one point the average price of regular unleaded gasoline was $3.64 per gallon. Assume that the standard deviation price per gallon is $0.07 per gallon and use Chebyshev's inequality to answer the following (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standad devations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean?...
At one point the average price of regular unleaded gasoline was 53.42 per gallon. Assume that...
At one point the average price of regular unleaded gasoline was 53.42 per gallon. Assume that the standard deviation price per gallon is 50.04 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...
At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that...
At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that the standard deviation price per gallon is $0.05 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean? (c) What...
At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that...
At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that the standard deviation price per gallon is $0.06 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 2 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...
3.2.35x At one point the average price of regular unleaded gasoline was $3.47 per gallon. Assume...
3.2.35x At one point the average price of regular unleaded gasoline was $3.47 per gallon. Assume that the standard deviation price per gallon is S0.07 per gallon and use Chebyshev's inequality to answer the following (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean? (c)...
At one point the average price of regular unleaded gasoline was $3.653.65 per gallon. Assume that...
At one point the average price of regular unleaded gasoline was $3.653.65 per gallon. Assume that the standard deviation price per gallon is $0.050.05 per gallon and useChebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 44 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.52.5 standard deviations of the mean? What are the gasoline prices that are within 2.52.5 standard deviations of the mean? (c) What is...
At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that...
At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that the standard deviation price per gallon is $0.04 per gallion and use Chebyshevs inequality to answer the following (a) What percentage of gasoline stations had prices within 2 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...
At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that...
At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that the standard deviation price per gallon is S0.08 per galion and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? the mean? (e) What is the minimum percentage of gasoline stations that had prices between $3.29 and $3.61? (a At least 1% of gasoline stations had prices within 4 standard deviations...
The U.S. Energy Administration reported that the mean price for a gallon of regular gasoline in the U.S, was $2.357. You are asked to test at a 06 level of significance whether the mean price for a gallon of gasoline in the Lower Atlantic states is different from the national mean. You sample 50 service stations in the Lowe determined the mean price for a gallon of regular gasoline was $2.343. The standard deviation for all stations in the lower...
%) 32.35x At one point the average price of regular unleaded gasoline was $3.64 per gallon. Assume that the standard deviation price per gallon is $0.07 per gallon and use Chebyshev's inequality to answer the following (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standad devations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean?...
At one point the average price of regular unleaded gasoline was 53.42 per gallon. Assume that the standard deviation price per gallon is 50.04 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...
At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that the standard deviation price per gallon is $0.05 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean? (c) What...
At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that the standard deviation price per gallon is $0.06 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 2 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...
3.2.35x At one point the average price of regular unleaded gasoline was $3.47 per gallon. Assume that the standard deviation price per gallon is S0.07 per gallon and use Chebyshev's inequality to answer the following (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean? (c)...
At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that the standard deviation price per gallon is $0.04 per gallion and use Chebyshevs inequality to answer the following (a) What percentage of gasoline stations had prices within 2 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...
At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that the standard deviation price per gallon is S0.08 per galion and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? the mean? (e) What is the minimum percentage of gasoline stations that had prices between $3.29 and $3.61? (a At least 1% of gasoline stations had prices within 4 standard deviations...
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