The following table summarizes the analysis of samples of galvanized steel for coating weight and surface roughness:coating weighthighlowhigh 1119surfaceroughnesslow 8234Round your answers to three decimal places (e.g. 98.765).a) If the coating weight of a sample is high, what is the probability that the surface roughness is high?b) If the surface roughness of a sample is high, what is the probability that the coating weight is high?c) If the surface roughness of a sample is low, what is the probability that the coating weight is low?

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Answered: The following table summarizes the…

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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2. Which of the following are practical ways to assess normality of the residuals? Select all that apply a. Normal probability plots (the R command is qqnorm() b. Anderson-Darling tests. c. Shapiro-Wilks tests. d. Boxplots e. Just ask if they are normal, or, guess, because, who really cares?
2. A plastic casting for a magnetic disk is composed of three parts, A, B, and C. The thickness of each part is normally distributed with a mean of 2 millimeters, and a standard deviation of 0.1 millimeter and the parts are independent. Calculate the probability that the total thickness (A+B+C) exceeds 6.5 millimeters.
Solve A) to D)
My question for my stats homework comes from the textbook Introduction to the Practice of Statistics Ninth Edition question 4.10.
Anyone who has been outdoors on a summer evening has probably heard crickets. Did you know that it is possible to use the cricket as a thermometer? Crickets tend to chirp more frequently as temperatures increase. This phenomenon was studied in detail by George W. Pierce, a physics professor at Harvard. In the following data, x is a random variable representing chirps per second and y is a random variable representing temperature (°F). 21.0 15.1 19.0 17.6 17.5 15.5 14.7 17.1 y 87.8 71.4 94.1 84.7 81.4 75.2 69.7 82.0 15.4 16.2 15.0 17.2 16.0 17.0 14.4 69.4 83.3 79.6 82.6 80.6 83.5 76.3 Find x, and y. Then find the equation of the least-squares line ŷ = a + bx. (Round your answer to four decimal places.) %3D X = y = + %3D Find the value of the coefficient of determination r. What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained? (Round your answer for r² to four decimal places. Round your…
the following are observed frequencies for a die, which could possibly be loaded. the die was rolled 150 times. the expected frequency is the same for each number. determine the test statistic. Number 1 2 3 4 5 6 Frequency 20 19 21 19 31 40
Mean St. Dev. Distribution Males 23.5 in. 1.1 in. Normal Females 22.7 in. 1.0 in. Normal Use the data in the table for sitting adult males and females. These data are used often in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats. Find the probability that a female has a back-to-knee length between 22.0 in and 24.0 in Warning! This question is not multiple choice! You are to fill in the blank with the correct answer. Write your answer in the form 0.1234
Use the data in the following table, which lists drive-thru Oder accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. A B C D Order Accurate 311 279 238 133 Order Not Accurate 32 56 35 16 If one order is selected, find the probability of getting an order from restaurant A or C or an order that is not accurate. (Round to three decimal places as needed)
Given the following data for an imaginary superhero universe: Flying Telepathy Super Strength Female 70 75 56 Male 6 98 54 What is the empirical probability that a randomly selected female superhero will have telepathy? Answer in decimal form. Round to 3 decimal places as needed.
Researchers have been studying acorns produced by trees in a certain region. The acorns are used as a food source by various animals. The researchers have recorded the mass of a random sample of acorns (displayed below). Acorn mass (grams): 4.1, 4.22, 3.9, 3.79, 4.09, 4.1, 4.03, 4.02, 3.78, 3.74, 3.72 Checksum: 43.49 Resample the sample (bootstrap) (link to program) with 1000 iterations to create a 90% confidence interval for the mean mass of all acorns: Result: The researchers can be 90% confident that the mean mass of all acorns in this region is between and grams.
The figure below represents the data from Table 3.6 in the book. It summarizes the lengths of hospital stays (days) for a sample 25 patients. Duration of hospitalization (days) 6. 1. 01-05 06-10 11-15 16-20 >20 What is the probability that someone stayed in the hospital at most 10 days? None of these choices are correct.
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?

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