I just need some assistance on these problems. 1. A study in 2010 performed by called people on the phone asked2251 US adults the question "“Do you think global warming is avery serious problem?" 721 of this group of people answered"Yes". (Based on data from the PEW Research Center.)a. Show that the approximate Normality criteria are satisfied (sowe can continue with our method).b. What is the value of the sample proportion, ?c. What is the approximate standard error, , for the samplingdistribution of sample proportions?d. What is the value for the margin of error for a 95% confidenceinterval?Give the 95% confidence interval for the population proportion,p, for all US adults who would answer "Yes" to this questionе.2010. f. Give an interpretation of this confidence interval, for a friendwho has never taken a statistics class.Anewspaper reported the results of the survey by stating in aheadline that "Fewer Than One-third of US Adults Think ThatGlobal Warming Is a Serious Problem." Based on yourconfidence interval, comment on this headline.

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1. A study in 2010 performed by called people on the phone asked 2251 US adults the question "Do you think global warming is a very serious problem?" 721 of this group of people answered "Yes". (Based on data from the PEW Research Center.) a. Show that the approximate Normality criteria are satisfied (so we can continue with our method). b. What is the value of the sample proportion, ?

1. A study in 2010 performed by called people on the phone asked 2251 US adults the question "Do you think global warming is a very serious problem?" 721 of this group of people answered "Yes". (Based on data from the PEW Research Center.) a. Show that the approximate Normality criteria are satisfied (so we can continue with our method). b. What is the value of the sample proportion, ?

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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Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

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I just need some assistance on these problems.

f. Give an interpretation of this confidence interval, for a friend
who has never taken a statistics class.
A
newspaper reported the results of the survey by stating in a
headline that "Fewer Than One-third of US Adults Think That
Global Warming Is a Serious Problem." Based on your
confidence interval, comment on this headline.

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