For Questions 3 & 4, calculate the following statistics:.XSD (standard deviation)• PR• σχFor the two samples, p = 20.00 and 15.00.3. Sample 1Data2325334444. Sample 2老

The given sample observations are as follows:Sample observations2325334344The population mean and…

Answered: For Questions 3 & 4, calculate 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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Illustration 10.4. Compute the standard deviation for fołlowing data: 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21.
Estimate the absolute standard deviation and the coefficient of variation for the results of the following calculations. Round each result to include only significant figures. The numbers in parentheses are absolute standard deviations. a. y = 1.02(±0.02) X 10−8 − 3.54(±0.2) X 10−9b. y = 0.0040(±0.0005) X 10.28(±0.02) X 347(±1)
The following three problems refer to the data sets displayed below: b 10. Which data set has the smallest standard deviation of the x-coordinates?
Use z scores to compare the given values. The tallest living man at one time had a height of 245 cm. The shortest living man at that time had a height of 120.7 cm. Heights of men at that time had a mean of 172.31 cm and a standard deviation of 6.66 cm. Which of these two men had the height that was more extreme? Since the z score for the tallest man is z = and the z score for the shortest man is z= the man had the height that was more extreme. (Round to two decimal places.)
The variance of this population data set 1.4,8.2,3.7,7.1 and 9.1 is Select one: O A. 10.515 O B. -381.10 OC. 8.41 O D. None of these
Vivian surveyed 3 of her classmates to find out the amount of time they spend on the cell phone on the weekend. The hours spent were 2. 7hr, 5.1 hr, and 4.2 hr, with the mean of 4 hours. Calculate the standard deviation using the following formula for variance: %3D n-1 Note: All the letters highlighted in blue need to be filled in with your answers. All values must be rounded to the nearest tenth (eg. 3.0, not 3 nor 3.02) Race time X,- (X-) in hours For For X2 For X3 Write the values in each of the blanks above (note-for i, use the same order as values given in the problem). What is the value of the numerator 2X- H)*? Write the value here Now calculate the denominator n-1. The value is and the standard deviation Finally, calculate the variance
Illustration1. Find the interquartile range and the coefficient of quartile deviation from the following data : Marks in Statistics : above 0 10 20 30 40 50 60 70 80 No. of Students : 150 140 100 80 80 70 30 14
John wishes to estimate the population standard deviation of salary of college graduates who took a statistics course in college. How many college graduates must he survey? Assume that he wants to be the sample standard deviation to be within 1% of the population standard deviation and to be 95% confident of that statement.
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P3, the 3-percentile. This is the temperature reading separating the bottom 3% from the top 97%.P3 = °C
The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation Compare these results to the actual mean µ = $1.667 and standard deviation o=$1.073. Click the icon to view the frequency distribution for the tax rates. The population mean is $ (Round to three decimal places as needed) The population standard deviation is $ (Round to three decimal places as needed.) Compare these results to the values found using the actual data. OA. The grouped values are both slightly larger. OB. The grouped values are both slightly smaller. OC. The grouped mean is slightly larger, while the grouped standard deviation is slightly smaller. OD. The grouped mean is slightly smaller, while the grouped standard deviation is slightly larger. Frequency distribution of cigarette tax rates Tax Rate 0.00 0.49 0.50-0.99 1.00-1.49 1.50-1.99 2.00-2.49 2.50-2.99 3.00-3.49 3.50-3.99…
Find the standard deviation of the following data. Round your answer to one decimal place. X 4,5,6,7,8,9 p(X=x) 0.1,0.2,0.1,0.2,0.2,0.2
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For Questions 3 & 4, calculate the following statistics: • . SD (standard deviation) • HR σχ For the two samples, p=20.00 and σ = 15.00. 3. Sample 1 Data 2 3 2 5 3 3 4 3 17 4 4