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 actualmean u= $1.665 and standard deviation o = $1.048.E Click the icon to view the frequency distribution for the tax rates.- XFrequency distribution of cigarette tax ratesFrequencyTax Rate0.00 -0.490.50-0.99The population mean is $(Round to three decimal places as needed.)121.00–1.4971.50-1.992.00-2.492.50-2.993.00-3.493.50-3.994.00-4.4976431PrintDone

Given data isMean(μ)=1.665standard deviation(σ)=1.048 Tax Rate Frequency 0.00-0.49 6…

Answered: The frequency distribution was obtained…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The coefficient of variation CV describes the standard deviation as a percent of the mean. Because it has no units, you can use the coefficient of variation to compare data with different units. Find the coefficient of variation for each sample data set. What can you conclude? Standard deviation CV= • 100% Mean E Click the icon to view the data sets Data table CVneights = % (Round to the nearest tenth as needed.) Heights Weights CVweights = % (Round to the nearest tenth as needed.) 79 214 65 186 What can you conclude? 71 171 80 206 O A. Height is more variable than weight. 72 203 O B. Weight is more variable than height. 66 214 74 208 70 228 69 208 67 207 78 226 73 203
The number of cans of soft drinks sold in a machine each week is recorded below. Develop forecasts for the period indicated and error calculations. 155, 145, 155, 162, 180, 165, 172, 149, 170, 172 Exponential smoothing. Use an alpha level of .8 What is the Mean Squared Error (MSE). What is the Mean Absolute Percentage Error (MAPE).
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The histogram below is from a simulation of the difference between two population proportions. The mean and the standard error are calculated using the population proportion values and the sample size values. Frequencies of difference in proportions -0.30 -0.20 -0.10 0.00 0.05 difference in proportions Which of the following is the best estimate of the standard error? 000sz 0000L Frequency
Alexander Borbely is a professor at the University of Zurich Medical School, where he is director of the sleep laboratory. The histogram in the figure below is based on information from his book Secrets of Sleep. The histogram displays hours of sleep per day for a random sample of 200 subjects. Estimate the mean hours of sleep, standard deviation of hours of sleep and coefficient of variation. (Enter mean to 1 decimal place, s and CV to 2 decimal places.)
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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 u= $1.885 and standard deviation o = $1.115. E Click the icon to view the frequency distribution for the tax rates. The population mean is S (Round to three decimal places as needed.)
The sample mean amount of savings is $
Calculate the average (mean) of the data shown, to two decimal places X 16.6 25 28.3 7.2 23.2 8.5 29.6 26.4
The amount of caffeine in a sample of five-ounce servings of brewed coffee is shown in the histogram. 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. Click the icon to view the histogram. Complete the table. Round values to the nearest tenth as needed. Graph/chart f Midpoint x xf 70.5 Ay 30- 92.5 26 25- 114.5 136.5 20- 158.5 15- 12 Ef = Exf = 10- Find the mean of the data set. 5- X = (Round to the nearest tenth as needed.) 48.5 70.5 92.5 114.5 136.5 158.5 Complete the table. Round values to the nearest tenth as needed. Midpoint x (x-x)? (x-x)?f X-X 70.5 Print Done 92.5 114.5 136.5 158.5 (x-x)?r= ] of
Automobiles traveling on a road with a posted speed limit of 65 miles per hour are checked for speed by a state police radar system. The following is a frequency distribution of speeds. Speed (miles per hour) Frequency 45 up to 55 70 55 up to 65 360 65 up to 75 250 75 up to 85 110 (See the Excel Data File.) The mean speed of the automobiles traveling on this road is the closest to ________.

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