Solution Library


Finding Feasible Statistical Study Methods

QuestionA study is planned to study whether passive smoking (being exposed to secondhand cigarette smoke on a regular basis) leads to higher rates of lung cancer.a) One possible study is to take a sample of children, randomly select half of them for placement in an environment where they are passive ... Read More

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Survey of Students to Find How Many Would Want a Female US President

QuestionYou plan to sample from the 3500 undergraduate students enrolled at the University of Rochester to compare the proportions of female and male students who would like to see the U.S. have a female president.a) Suppose that you use random numbers to select students, but you stop selecting fema ... Read More

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Sample Testing of a New Drug for Pain Management

QuestionA new drug designed to control neuropathic pain needs to be tested using pain score measurements (on a scale of 0 – 10; 0 = no pain). Clinicians think that a standard deviation of 2 for the pain score would be a suitable value.  For the drug to be carried forward a minimum decreas ... Read More

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Randomized Controlled Trail of a New Drug for Pain Management

QuestionA parallel group RCT was conducted to compare the effects of a new drug treatment regime against the currently used treatment on patients with neuropathic pain. The primary outcome was the fall in pain scores over a three week course of treatment. Patients who presented with consistent neuro ... Read More

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Calculate Statistical Significant Difference in General Election Voting

Questiona) In 2008 was there any statistically significant difference as to the Age, Income, Self-Placement on the Left-Right scale, Interest in the Federal Election (based on question asked during the Campaign Period), or feelings towards Quebec, between those ONTARIANS who voted for the Conservati ... Read More

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Calculate Statistical Significant Difference of Voting in General Election

QuestionIn 2008 was there any statistically significant difference as to the Age, Income, Self-Placement on the Left-Right scale, Interest in the Federal Election (based on question asked during the Campaign Period), or feelings towards Canada between those Quebeckers who voted for the Conservative ... Read More

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2008 Canada Elections Leader Getting Blamed and Credit for Losing and Winning Elections

Questiona.) When a party loses an election, the leader usually has to take the blame for this, fairly or unfairly. Did Stéphane Dion help or hurt the Liberal Party during the 2008 election? b.) Similarly when a party wins, its leader gets the credit. Therefore it is also worth asking whether ... Read More

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Adding a New Variable to the Data of People Who’ve Voted in 2008 Canada Elections

QuestionRecode ces08_CPS_S18B_ISR (ISR Income Categories) into a new variable called Low_Inc so that everyone who earns less than $30,000 is coded as 1 and labelled (low income) and everyone who earns $30,000 or more is coded as 0 and labelled (non-low income), you are missing, no answer, don’ ... Read More

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2008 Canada Elections Constructing OLS Regression for Candidates

QuestionMany things can contribute to our opinions of a political leader, their attributes as a person or leader, their performance during a recent campaign, the positions they hold on the key issues of the day, and our estimates as to whether or not they will do well (or did well in office) with ma ... Read More

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Probability of Second Contestant Winning in the TV Show ‘The Price is Right’

QuestionIn the TV game show The Price is Right, contestants have to spin a wheel with a hundred amounts ranging from 1 cent to 100 cents in equal one cent increments. The contestant with the amount closest to $1 wins. If the first contestant spins 80 cents, what is the probability that the second co ... Read More

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Calculation of Average Per Diem Cost of Business Class Travel

QuestionRunzheimer International publishes business travel costs for various cities throughout the world. In particular, they publish per diem totals, which represent the average costs for the typical business traveler including three meals a day in business-class restaurants and single rate lodging ... Read More

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Poisson Distribution to Calculate Unscheduled Flight Arrivals

QuestionDuring the summer at a small airport in Labasa, Fiji, the unscheduled arrival of airplanes is Poisson distributed with an average arrival rate of 1.12 planes per hour. What is the probability that at least 2 hours will elapse between plane arrivals?SummaryThe question belongs to Statistics a ... Read More

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