R3.35. Age and party 2008 The Pew Research Center collecteddata from national exits polls conducted by NBC News afterthe 2008 presidential election. The following table showsinformation regarding voter age and party preference:18-2930-4445-6465+TotalRepublican Democrat26039032037936939215303293611270Other Total351 1001300300251120299999810044002a) What sampling strategy do you think the pollsters used?Explain.b) What percentage of the people surveyed were Democrats?c) Do you think this is a good estimate of the percentage ofvoters in the United States who are registered Democrats?Why or why not?d) In creating this sample design, what question do youthink the pollsters were trying to answer?

The Pew research center collected data from national exit polls conducted by NBC news after the 2008…

Answered: R3.35. Age and party 2008 The Pew…

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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As part of a statistics project, a teacher brings a bag of marbles containing 800 white marbles and 300 red marbles. She tells the students the bag contains 1100 total marbles, and asks her students to determine how many red marbles are in the bag without counting them. A student randomly draws 100 marbles from the bag. Of the 100 marbles, 32 are red. The data collection method can best be described as Survey Census Controlled study Clinical study The target population consists of The 1100 marbles in the bag The 300 red marbles in the bag The 32 red marbles drawn by the student The 100 marbles drawn by the student None of the above The sample consists of The 300 red marbles in the bag The 32 red marbles drawn by the student The 100 marbles drawn by the student The 1100 marbles in the bag None of the above Based on the sample, the student would estimate that marbles in the bag were red.
A researcher asks ten (10) people how many times they have been to a movie theatre in the past year. She records the following frequencies: 7, 4, 5, 1, 9, 8, 12, 11, 5, 2 Calculate 1. mode 2. median 3.mean 4.range
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