Mathematics, 12.03.2020 20:37 justhereforanswers13
Cloud seeding has been studied for many decades as a weather modification procedure. The rainfall in acre-feet from 18 clouds that were selected at random and seeded with silver nitrate follows:
18.0, 30.7, 19.8, 27.1, 22.3, 18.8, 31.8, 23.4, 21.2, 27.9, 31.9, 27.1, 25.0, 24.7, 26.9, 21.8, 29.2, and 34.8.
(a) Can you support a claim that means rainfall from seeded clouds exceeds 25 acre-feet? Use a= 0.01. Find the P-value.
(b) Check that rainfall is normally distributed.
(c) Compute the power of the test if the true mean rainfall is 27 acre-feet.
(d) What sample size would be required to detect a true mean rainfall of 27.5 acre-feet if you wanted the power of the test to be at least 0.9?
(e) Explain how the question in part (a) could be answered by constructing a one-sided confidence bound on the mean rainfall rate.
Answers: 1
Mathematics, 21.06.2019 17:30, mduncan840
The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?
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Mathematics, 21.06.2019 22:40, kevon9008
Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236
Answers: 1
Cloud seeding has been studied for many decades as a weather modification procedure. The rainfall in...
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