In a certain presidential election, Alaska's 40 election districts averaged 1,958.8 votes per district for a candidate. The standarddeviation was 572.5. (There are only 40 election districts in Alaska.) The distribution of the votes per district for one candidate wasbell-shaped. Let X = number of votes for this candidate for an election district.O Part (a)State the approximate distribution of X. (Enter your numerical values to one decimal place.)X- N CO Part (b)Is 1,958.8 a population mean or a sample mean? How do you know?O A population mean, because all election districts are included.O A population mean, because only a sample of election districts are included.O A sample mean, because only a sample of election districts are included.O A sample mean, because all election districts are included.O Part (c)Find the probability that a randomly selected district had fewer than 1,700 votes for this candidate. (Round your answer to four decimal places.)0.3Sketch the graph.0.00070.00070.00060.00060.00050.00040.00050.00040.00030.00030.00020.00020.00010.0001X400010002000300010002000300040000.00070.00060.00050.00040.00070.00060.00050.00040.00030.00030.00020.00020.00010.000110002000300040001000200030004000Write the probability statement.P 0.62O Part (d)Find the probability that a randomly selected district had between 1,800 and 2,000 votes for this candidate. (Round your answer to four decimalplaces.)0.1238O Part (e)Find the third quartile for votes for this candidate. (Round your answer up to the next vote.)2384X votes

Given that, In a certain presidential election, Alaska's 40 election districts averaged 1,958.8…

Answered: Find the probability that a randomly…

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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In the book Business Research Methods (5th ed.). Donald R. Cooper and C. William Emory discuss studying the relationship between on-the-job accidents and smoking. Cooper and Emory describe the study as follows: Suppose a manager implementing a smoke-free workplace policy is interested in whether smoking affects worker accidents. Since the company has complete reports of on-the-job accidents, she draws a sample of names of workers who were involved in accidents during the last year. A similar sample from among workers who had no reported accidents in the last year is drawn. She interviews members of both groups to determine if they are smokers or not. The sample results are given in the following table. On-the-Job No 7 Smoker Heavy Moderate Nonsmoker 16 Column total 34 Heavy Moderate Yes Nonsmoker Total 12 6 Expected counts are below observed counts No Accident Total 19 7 9.21 9 Row 1 Row 2 Row 3 Column 1 Column 2 16 32 Accident 12 9.79 6 Accident Row Total 7.27 16 15.52 32 7.73 16…
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