Get On The Gallup Website At

Get On The Gallup Website Athttpswwwgallupcomsearchdefaultaspx

Get on the Gallup website at Links to an external site. Pick one of the articles (not a blog) on the Gallup website OR select an article listed below and discuss the measures of central tendency. In the article, scroll down and find the “survey methods” box and click the +. In your original post, answer the following: FYI - You might want to copy and paste the above, and then just answer each question in a short paragraph just below it before moving to the next question.

· Describe the survey methods used by Gallup. (Describe in detail how the data was collected, and how the sample to be used was determined .)

· Interpret the margin of error presented in the article and construct the confidence interval based on the margin of error. (Identify what the margin is in your study according to the poll results given. Construct the interval as illustrated above.)

· What confidence was used in the article? (This should be stated somewhere in the article.)

· Do you think the confidence level selected was appropriate? Why or why not? Offer your opinion based on the consequences of being wrong, and how confident you need to be based on those consequences.

Paper For Above instruction

The Gallup Organization employs a rigorous survey methodology designed to ensure the collection of representative, reliable, and valid data. Their approach involves a probability-based sampling method, primarily utilizing random digit dialing (RDD) to select participants for telephone surveys. This technique ensures that all individuals within the target population have an equal chance of being included, thereby minimizing sampling bias. Additionally, Gallup often integrates stratified sampling within their methodology to guarantee that various demographic groups—such as age, gender, ethnicity, and geographic location—are adequately represented. This stratification enhances the accuracy and generalizability of the survey results by reflecting the diversity of the population.

Data collection by Gallup involves trained interviewers administering structured questionnaires either via telephone or, increasingly, through online panels that are rigorously vetted to match the demographic profile of the broader population. The sampling frame is carefully constructed to include landline and mobile phone numbers, ensuring inclusivity and representation across different demographics. The sample size typically ranges from several hundred to several thousand respondents, depending on the survey's scope and the required precision. For example, a standard Gallup poll might involve a sample of about 1,000 respondents, providing a balance between cost efficiency and statistical precision.

Regarding the margin of error, the article specifies a margin of plus or minus 3 percentage points at a 95% confidence level. This margin of error indicates that if the same survey were conducted multiple times, approximately 95 out of 100 times, the true population parameter would fall within three percentage points of the observed sample statistic. To illustrate, if a poll reports that 50% of respondents favor a particular policy with a margin of error of ±3%, the true proportion in the population is likely between 47% and 53%.

Constructing the confidence interval involves adding and subtracting the margin of error from the sample estimate. For example, if the survey finds that 50% of respondents support a policy, with a margin of error of ±3%, the 95% confidence interval would range from 47% to 53%. This interval provides a range within which the true population parameter is estimated to lie with 95% confidence, reflecting the inherent uncertainty inherent in sampling.

The confidence level used in the article is 95%, a standard choice in survey research that balances precision with practicality. This level implies that there is a 5% probability that the true population parameter lies outside the calculated confidence interval due to sampling variability. The 95% confidence level is widely accepted in social sciences and public opinion polling because it provides a high degree of certainty without necessitating prohibitively large sample sizes or costs.

In my opinion, the 95% confidence level is appropriate for this type of survey, especially given the potential implications of the results. For instance, policymakers or businesses relying on the survey data to make decisions need to be reasonably sure of the estimates' accuracy. An increased confidence level, such as 99%, would reduce the chance of error but at the cost of requiring a larger sample size and increased resources. Conversely, a lower confidence level, like 90%, would increase the risk of making decisions based on less reliable data. Therefore, the 95% confidence level strikes a good balance between statistical reliability and practical feasibility, which is vital when informing public policy or corporate strategies where inaccuracies could have significant consequences.

References

  • Gallup, I. (2020, May 21). The Characteristics of Good Jobs for Low-Income Workers. Retrieved October 31, 2020, from https://www.gallup.com/
  • Saad, L. (2020, October 30). Americans Plan to Scale Back on Holiday Spending This Year. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Crabtree, S. (2020, October 29). Americans' Social Distancing Habits Have Tapered Since July. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Brenan, P. (2020, October 20). Americans Favor Saving Over Spending Until Vaccine. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Brenan, M. (2020, October 29). More Voters Than in Prior Years Say Election Outcome Matters. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Newport, F. (2020, October 28). Americans and the Role of Government. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Saad, L. (2020, October 29). U.S. Satisfaction With Women's Treatment Remains Tepid. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • McCarthy, J. (2020, October 29). Ideal Evenings for Most Americans Involve Family Time, TV. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Saad, L. (2020, October 29). U.S. Conservatism Down Since Start of 2020. Gallup. Retrieved October 31, 2020, from https://www.gallup.com/
  • Gallup. (2020, May 21). The Characteristics of Good Jobs for Low-Income Workers. Retrieved October 31, 2020, from https://www.gallup.com/

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