Exercise 03.38 Algo (MeasuresQuestion 14 of 20of Distribution Shape, Relative Location, andDetecting Outliers)Suppose the data have a bell-shaped distribution with amean of 50 and a standard deviation of 5. Use theempirical rule to determine the percentage of data withineach of the following ranges:a. 40 to 60- Select your answer -b. 35 to 65- Select your answer - ✓c. 45 to 55- Select your answer -

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Answered: Exe Algo of Distribution Shape,…

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 estimated distribution (in millions) of the population by age in a certain country for the year 2015 is shown in the pie chart. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Use 70 as the midpoint for "65 years and over." ... The sample standard deviation is s = as needed.) Under 4 years: 23.3 5-14 years: 42.4 15-19 years: 19.2 20-24 years: 23.5 25-34 years: 43.5 35-44 years: 40.3 45-64 years: 81.8 65 years and over: 52.9 (Round to two decimal places
Exhibit 11-3 The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounce. We are interested in testing to determine whether the variance of the population is significantly more than .003. Refer to Exhibit 11-3. The p-value for this test is a) .05 b) greater than .10 c) less than .10 d) 1.96
3. Complete the first 3 columns of the table below. Values Deviations Square deviations X - X X (X-X)² Standard (z) scores X - X S Z= a. Compute the sample variance and sample standard deviation by definition. b. Fill in the last column of the table c. Compute the coefficient of variation.
The mean and standard deviation marks of 4 different classes of the same grade are recorded in the table below. Mean mark Standard deviation Class 1 Class 2 Class 3 83 9 78 5 71 14 Class 4 64 5 Using the coefficient of variation, determine which class has marks that more spread out about the mean. A. Class 1 B. Class 2 C. Class 3 D. Class 4
The length of preg…
X-9, 10, 18, 12, 15, 13, 11, 10, 16 To two decimals places without a leading zero, compute 1. Skew (to 2 decimals) 2. Se Skew (to 2 decimals) 3. Test value 4. Is the distribution normal (yes or no)?
Ch 8 FRQ ( The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric, unimodal, and bell-shaped, with a mean of 184.8 mph and a standard deviation of 7.2 mph. In the space above, draw a Normal Curve, from z=-3 to z=+3. Draw vertical lines at the mean and each whole number standard deviation above and below the mean. Write two rows of numbers under the base line; one row with the number of standard deviations above and below the mean (z-scores), and a row under that with the actual values for this problem. ] What percent of drivers would you expect to have speeds below 199.2 mph ? Show all work. s] What is the area under the curve to the left of a speed of 170.4mph Show all work. What is the probability that a driver selected at random will have a speed below 172.0 mph ? Show all work. B] What percent of drivers would you expect to have a speed above 177.0 mph ? Show all work. How many drivers would you expect to have speeds between 170.4 mph and 177.0 mph…
The scores of the Betropolis University Music Appreciation Exam are Normally Distributed with a mean of 50 and a standard deviation of 10; that is N(50, 10). A. Boris scored 40.6 and Bela scored 56.8. Find the percent of students who scored greater than Boris and less than Bela. Your answer should be correct to 4 places after the decimal point. ___________ B. 51% of the students score greater than Bernie. Find Bernie’s score. Your answer should be correct to 3 places after the decimal point. Bernie’s score was ___________
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 71 miles per hour, with a standard deviation of 5 miles per hour. Estimate the percent of vehicles whose speeds are between 61 miles per hour and 81 miles per hour. (Assume the data set has a bell-shaped distribution.) Approximately ________ % of vehicles travel between 61 miles per hour and 81 miles per hour.
Use the sample data set to evaluate each of the steps in determining the sample standard deviation 23 20 14 35 28 Give an exact answer, not an approximation, for each step except the standard deviation. round the standard deviation to the nearest hundredth.. = = variance, s2 = standard deviation, s =
Build the frequency distribution table with 5 classes, and for the following observations for some students marks? then Answer the following Questions from the constructed table... A) Which class has maximum frequency?... B) Which class has minimum frequency? .. C) Classify the ?type of table 88 39 38 45 50 76 78 33 28 36 88 46 67 72 58 30 85 56 51 42 38 68 67 84 41 52 76 69 41 685 ト

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