Gasoline Use A random sample of 25 drivers used on average 757 gallons of gasoline per year. The standard deviation of the population is 32 gallons.Part: 0 / 2Part 1 of 2(a) Find the 99% confidence interval of the mean for all drivers. Round intermediate answers to at least three decimal places. Round your final answers tothe nearest whole number.☐<μ<XŚ

From the provided information,Confidence level = 99%

Answered: Gasoline Use A random sample of 25…

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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J 1 IQ scores of people around the World are normally distributed, with a mean of 100 and a standard deviation of 15. A genius is someone with an IQ greater than or equal to 140. What percent of the population is considered genius? The Weights of 100 remote control cars at a competition are approximately normally distributed. The average weight is 3.2 kg, with a standard deviation of 0.4 kg. How many remote control cars would be disqualified if it were against the rules to have a car with a weight of more than 4 kg or less than 2.4 kg? A car is said to be in the 90th percentile. How much does it weigh? Using the Statistics for 42 Countries, choose one variable to collect for each of the countries. You may use the data you have collected in the past. Calculate the percentile of the country for the collected variable by first calculating the mean, standard deviation and z-score. If you sort the countries by the variable from highest to lowest, what percent of the countries are below the…
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