8. Height of a beam is measured by 12 persons using measuring tape and values are reported inthe table shown,2345679101211Measurement 1Diameter, in 188.2 187.9 187.7 188.1 188.3 187.8 188.5 188.3 187.8 188.4 187.7 188.6a) Compute the mean and standard deviation of the samples and population,b) The probability of a measurement to be between 187.9 and 188.2 in,c) What is the range of measurement that contain 60% of all measurements,1d) If values out of μ±o are not accepted, which values given in the table need to be ejected,

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Answered: 8. Height of a beam is measured by 12…

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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HELP PLEASE!! Thank you :) Options for C. And D. C. 1. Private/Public 2. Standard deviation of / Mean. 3. Smaller/Larger D. 1. Private/public. 2. Standard deviation of/Mean. 3. Larger/Smaller
Combined city and highway gas mileage is approximately normally distributed with mean 23.0 mpg and standard deviation 4.9 mpg. A) Assume twenty 2016 model year vehicles are randomly selected. Describe the distribution of the variable x̄. i. Shape (Justify how you know your answer) ii. Mean iii. Standard deviation, rounded to three decimal places. B) Find the probability that the mean gas mileage of a sample of twenty 2016 model year vehicles is less than 24 mpg.
3. Assume the heights of students at Champlain College are normally distributed with a mean of 64.0 inchesand a standard deviation of 1.2 inches. Which of the following values best approximates the probabilityof randomly selecting a Champlain College studenttallerthan 62.2 inches?A. 0.0668B. 0.0359C. 0.9332D. 0.9641E. 1.0155
You are asked to compare the means of two data sets, A and B, with standard deviations that are not significantly different. The number of measurements in each data set is nA and nB, respectively. The number of degrees of freedom is a) nA-nB b) nA+nB+2 c)nA+nB-2 d)nA+nB-1 e)nA+nB
Answer number 4 only..
A population has a normal distribution with a mean of 32.9 and a standard deviation of 35.2. Draw 4. a normal curve with labels, shading, and what you entered into the calculator for full credit. Round your answer to 4 decimal places. Find the probability that a randomly selected item is between 27.5 and 40.6 a) Find the probability that a sample size of 25 is randomly selected and is less than 28.2. b)
It is reported that a survey had a standard error of the mean of 20, and it is assumed that the population standard deviation is 500. Using this information, determine the size of the sample that was used in this survey. a) 300 b) 200 c) 400 O d) 500 () e) None of the answers are correct
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 46 ounces and a standard deviation of 9 ounces.Use the Empirical Rule.Suggestion: sketch the distribution in order to answer these questions.a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 28 and 73 ounces? %c) What percentage of the widget weights lie above 37 ? %
The mean value of land and building per acre from a sample of farms is $1400 with a standard deviation of $300. The data set has a bell shaped distribution. Assume the number of farms in the sample is 71. A) Use the empirical rule to estimate the number of farms whose land and building values per acre are between $800 snd $2000. B) If 25 additional farms were sampled , about how many of these additional farms would you expect to have a land and building values between $800 and $2000?
III. SAMPLING AND SAMPLING DISTRIBUTIONS Assume that the systolic blood pressure of 30-year-old males is normally distributed, with an average of 122 mmHg and a standard deviation of 10 mmHg. а. b. Calculate the probability that the blood pressure of an individual male from this population will be between 118 and 124 mmHg.
how many women must be randomly selected to estimate the mean weight of women in one age group. we want 90% confidence that the sample mean is within 3.4 lb of the population mean, andthe population standard deviation is known to be 25 lb. A) 147 B) 148 C) 208 D) 146

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