The Acme Company manufactures widgets. The distributionof widget weights is bell-shaped. The widget weights have amean of 54 ounces and a standard deviation of 7 ounces.Use the Empirical Rule.Suggestion: sketch the distribution in order to answer thesequestions.a) 99.7% of the widget weights lie betweenandb) What percentage of the widget weights lie between 47and 75 ounces?%c) What percentage of the widget weights lie below 68 ?%20

Given ,Mean , Standard deviation , 7

Answered: The Acme Company manufactures widgets.…

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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Internet Service Providers The amount that households pay service providers for access to the Internet varies quite a bit, but the mean monthly fee is $50 and the standard deviation is $20. The distribution is not Normal: many households pay a low rate as part of a bundle with phone or television service, but some pay much more for Internet only or for faster connections. A sample survey asks an SRS of 50 households with Internet access how much they pay. Let x be the mean amount paid. 1. Explain why you can't determine the probability that the amount a randomly selected household pays for access to the Internet exceeds $55. 2. What are the mean and standard deviation of the sampling distribution of x ? 3. What is the shape of the sampling distribution of x ? Justify your answer. 4. Find the probability that the average fee paid by the sample of households exceeds $55.
I need help solving this equation
Please help
Use the grouped data formulas to find the indicated mean or standard deviation. For the following data set, approximate the sample standard deviation. Height (in inches) Frequency 50-52 53-55 56-58 12 59-61 13 62-64 11 E
the table below shows the number of books the Jefferson Middle school students readeach month for nine months. Month Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Number of Books 293 280 266 280 289 279 275 296 271 If the students read only 101 books for the month of June, which measure of central tendency will have the greatest change?A. The mean will have the greatest change.B. The median will have the greatest change.C. All measures will have an equal change.D. The mode will have the greatest change.
A drug company claims that an allergy medication causes headaches in 5% of those who take it. A medical researcher believes that more than 5% of those who take the drug actually get headaches.
Subject: algbera
The heights of Crepe Myrtle saplings at a local nursery are measured and the data recorded. The data is then plotted and the distribution is found to be bell-shaped. The mean of the set is 67 inches and the standard deviation is 3 inches. A graph of the situation is shown below: 58 61 64 67 70 73 76 a) What percentage of the saplings is more than 70 inches tall? b) What percentage of the saplings is between 61 and 73 inches tall?
Assume the selling prices of homes in a particular community follow a normal distribution with a mean of $263,100 and a standard deviation of $43,200. Complete parts a through c. a. Determine the range of selling prices in this community that includes one standard deviation around the mean. The range is from $ to $ (Type integers or decimals. Use ascending order.) b. Determine the range of selling prices in this community that includes two standard deviations around the mean. The range is from $ to $ (Type integers or decimals. Use ascending order.) c. Determine the range of selling prices in this community that includes three standard deviations around the mean. The range is from $ to $1. (Type integers or decimals. Use ascending order.)
Please answer a and b
Calculate the Range of each boxplot. (approximately) Calculate and display the median values of each boxplot. (approximately Provide information about the graphic distribution of each boxplot.
Milan

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