At one point the average price of regular unleaded gasoline was $3.46 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 2 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 the mean? (c) What is the minimum percentage of gasoline stations that had prices between $3.18 and $3.74? (a) At least % of gasoline stations had prices within 2 standard deviations of the mean. (Round to two decimal places as needed.) (b) At least % of gasoline stations had prices within 1.5 standard deviations of the mean. (Round to two decimal places as needed.) The gasoline prices that are within 1.5 standard deviations of the mean are $ (Use ascending order.) to $ (c) % is the minimum percentage of gasoline stations that had prices between $3.18 and $3.74. (Round to two decimal places as needed.)

At one point the average price of regular unleaded gasoline was $3.46 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 2 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 the mean? (c) What is the minimum percentage of gasoline stations that had prices between $3.18 and $3.74? (a) At least % of gasoline stations had prices within 2 standard deviations of the mean. (Round to two decimal places as needed.) (b) At least % of gasoline stations had prices within 1.5 standard deviations of the mean. (Round to two decimal places as needed.) The gasoline prices that are within 1.5 standard deviations of the mean are $ (Use ascending order.) to $ (c) % is the minimum percentage of gasoline stations that had prices between $3.18 and $3.74. (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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For a data set of the pulse rates for a sample of adultfemales, the lowest pulse rate is 33 beats per minute, the mean of the listed pulse rates is x=71.0 beats per minute, and their standard deviation is s=23.1 beats per minute. a. What is the difference between the pulse rate of 33 beats per minute and the mean pulse rate of the females? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the pulse rate of 33 beats per minute to a z score. d. If we consider pulse rates that convert to z scores between −2 and 2 to be neither significantly low nor significantly high, is the pulse rate of 33 beats per minute significant?