Mathematics, 11.06.2020 16:02, rachel693
The amount of pollutants that are found in waterways near large cities is normally distributed with mean 9 ppm and standard deviation 1.5 ppm. 38 randomly selected large cities are studied. Round all answers to 4 decimal places where possible.
1. What is the distribution of XX? XX ~ N(,)
2. What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
3. What is the probability that one randomly selected city's waterway will have more than 9.6 ppm pollutants?
4. For the 37 cities, find the probability that the average amount of pollutants is more than 9.6 ppm.
5. For part d), is the assumption that the distribution is normal necessary? YesNo
6. Find the IQR for the average of 37 cities.
Q1 = ppm
Q3 = ppm
IQR: ppm
Answers: 1
Mathematics, 21.06.2019 19:00, sciencegeekgirl2017
Write the pair of fractions as a pair of fractions with a common denominator
Answers: 3
Mathematics, 21.06.2019 23:00, arnold2619
How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)
Answers: 2
The amount of pollutants that are found in waterways near large cities is normally distributed with...
History, 11.07.2019 21:10
History, 11.07.2019 21:10
Computers and Technology, 11.07.2019 21:10
Physics, 11.07.2019 21:10