47°FCloudyWThe Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widgetweights have a mean of 62 ounces and a standard deviation of 4 ounces.Use the Standard Deviation Rule, also known as the Empirical Rule (see image below). Do not usenormalcdf on your calculator.Suggestion: sketch the distribution in order to answer these questions.a) 99.7% of the widget weights lie betweenb) What percentage of the widget weights lie between 54 and 74 ounces?3c) What percentage of the widget weights lie above 58 0E0.15%$2.35%413.5%RQuestion Help: Video Written Example Message instructorQ Search%34% 34%▬▬5TA13.5%62.35%&Y0.15%7*andU8(9TepO%P

X~N( μ , ?) μ=62 , ?=4 Z-score =( x - μ )/?

Answered: 47°F Cloudy W The Acme Company…

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 Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 35 ounces and a standard deviation of 6 ounces.Use the Standard Deviation Rule, also known as the Empirical Rule (see image below). Do not use normal CDF on your calculator.Suggestion: sketch the distribution in order to answer these questions.a) 95% of the widget weights lie between ? and ?b) What percentage of the widget weights lie between 17 and 47 ounces? ? %c) What percentage of the widget weights lie below 41% ?
instructor gives a 100-point examination in which the grades are normally distributed. The mean is 66 and the standard deviation is 5. If there are 5% A's and 5% F's, 15% B's and 15% D's, and 60% C's, find the scores that divide the distribution into those categories. Round the cutoff scores to the nearest whole number. Round intermediate z-value calculations to 2 decimal places. A:_- B: C: D: --- F: _-_
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The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 58 ounces and a standard deviation of 6 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule (see image below). Do not use normalcdf on your calculator. 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 52 and 76 ounces? % c) What percentage of the widget weights lie above 46 ? 34% 34% 2.35%, 13.5% 13.5% 2.35% 0.15% „0.15% -3s -2s -1s 1s 3s
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 = $1.638 and standard deviation o = $1.052. Click the icon to view the frequency distribution for the tax rates. The population mean is $ (Round to three decimal places as needed.) book Get more help. C *** Frequency distribution of cigarette tax rates G Search or type URL 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 4.00-4.49 Print Frequency O 7 12 6 6 6 6 3 3 1 Done - X Clear all Check answer
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.
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