neArchivoEditarVerHistorialFavoritosPerfilesPestañaVentanaAyudaNAWbbhosted.cuny.edu/webapps/assessment/take/launch.jsp?course_assessment_id%3D_2002402_1&course_id%3_2050858_1&content_id%3_6CcionesM GmailYouTubeMapsNoticias G Traduciruestion Completion Status:The amount of water consumed each week by Bronx residences is normally distributed. The population mean of water consumption is 120.3 gallons with astandard deviation of 10.0 gallons. Test the claim at the 0.10 significance level that the average amount of water consumed is not 125 gallons with a samplesize of 100 residences.What is the probability of Z obı?

Given : sample size, n = 100 sample mean, x̄ = 125 population standard…

Answered: stion Completion Status: he amount of…

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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The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces.Refer to Exhibit 6-5. What is the random variable in this experiment? a. 8 ounces b. Weight of items produced by a machine c. Normal distribution d. 2 ounces
The consumption of processed fruits by people in the U. S. in a recent year was normally distributed with a mean of 218.2 pounds and a standard deviation of 68.1 pounds. A random sample of 40 people is selected. What is the probability that the mean amount of consumption is more than 200 pounds? a. 95.45% b. 62.35% O c. 4.55% d. 78.34%
The average cost per household of owning a brand new car is $5,500. Suppose that we randomly selected 45 households, determine the probability that the sample mean for these 45 households is between $5,250 and 6,000. Assume that the variable is normally distributed and the standard deviation is $1,550. SD of the sample mean (input 4 decimal places)= type your answer... type your answer... z-scores (input 2 decimal places) type your answer... Final answer/Probability (input 2 decimal places type your answer... %
Coal is carried from a mine in west virginia to a power plant in new york in hopper cars on a long train. The automatic hopper car loader is set to put 77 tons of coal into each car. The actual weights of coal loaded into each care are normally distributed with mean u= 77 tons and standard deviation 0= 1.1 ton. A. What is the probability that one car chosen at random will have less than 76.5 tons of coal? ( Round your answer to four decimal places.) B. What is the probability that 29 cars chosen at random will have a mean load weight x of less than 76.5 tons of coal? ( Round your answer to four decimal places) C. Suppose the weight of coal in one car was less than 76.5 tons. Would that fact make you suspect that the loader had slipped out of adjustment. Suppose the weight of coal in 29 cars selected at random had an average x of less than 76.5 tons. Would that fact make you suspect that the loader had slipped out of adjustment? Why?
Rent for two-bedroom apartments in Davis, CA, follow a normal distribution with mean of $2,200 and standard deviation of $300. A random sample of 36 two-bedroom homes results in a mean $2,075. What is the probability that the sample mean is greater than or equal to $2,075?
Indrilling a vertical wellbore, the spacing between major fractures are recorded. It has been found that this spacing is having a mean of 180o ft and a variance of 3,240,000 ft In the first 2000 ft drilling, there was no present of major fracture in the well. Determine the probability that there is a major fracture at the depth of 2000-3500 ft. Select one: a.0.57 b.o.43 C. O.19 do 82
What is the standard deviation if the variance is 6.25? A, 2.5 B, 2.8 C. 3.5 D. 3.8
The average amount of money spent by an Amazon customer per month is $1296 with standard deviation $110. Assume the variable is normally distributed. Answer the following questions. What is the probability that a random sample of 15 Amazon customers spent an average between $1100 and $1300 in a month?
The mean weight of Sumo wrestlers is 350 pounds with a standard deviation of 25 pounds. Assume the distribution of Sumo wrestler weights is unimodal and symmetric and the Empirical Rule applies. If a Sumo wrestler is randomly selected what is the probability they weigh less than 300 pounds? 50% 84% 16% 2.5%
A bottling company uses a filling machine to fill plastic bottles with a popular cola. The bottles are supposed to contain 200 milliliters (ml). In fact, the contents vary according to a normal distribution with mean of 203 ml and standard deviation of 4 ml.b.) What is the probability that an individual bottle contains less than 200 ml? A. 23.56% B. 22.66% C. 32. 56% D. 45.56%
What is the probability of randomly selecting a z-score less than z = –1.25 from a normal distribution? Question options: a. 0.2112 b. 0.1056 c. 0.8944 d. 0.3944

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