Geeesh-
Nature of the Sample: NBC News/Marist Poll of 1,067 North Carolina Adults
This survey of 1,067 adults was conducted July 14th through July 22nd, 2020 by The Marist Poll sponsored in partnership with NBC News. Adults 18 years of age and older residing in the state were contacted on landline or mobile numbers and interviewed by telephone using live interviewers. Survey questions were available in English or Spanish. Mobile telephone numbers were randomly selected based upon a list of telephone exchanges from throughout the state from Dynata. The exchanges were selected to ensure that each region was represented in proportion to its population. Mobile phones are treated as individual devices. After validation of age, personal ownership, and non-business- use of the mobile phone, interviews are typically conducted with the person answering the phone. To increase coverage, this mobile sample was supplemented by respondents reached through random dialing of landline phone numbers. Within each landline household, a single respondent is selected through a random selection process to increase the representativeness of traditionally under-covered survey populations. The samples were then combined and balanced to reflect the 2017 American Community Survey 5-year estimates for age, gender, income, race, and region. Results are statistically significant within ±3.7 percentage points. There are 882 registered voters. The results for this subset are statistically significant within ±4.0 percentage points. Tables include results for subgroups with a minimum sample size of 100 unweighted completed interviews as to only display crosstabs with an acceptable sampling error. It should be noted that although you may not see results listed for a certain group, it does not mean interviews were not completed with those individuals. It simply means the sample size is too small to report. The error margin was adjusted for sample weights and increases for cross-tabulations.
NBC News/Marist Poll North Carolina Annotated Questionnaire
First of all the sample size is too small to be statistically significant. A true empirical data collection will be nothing less than 5% of the total represented population. Even with that rule there are different formularies for population averages versus sample averages.
The confidence factor rises about one percentage point for every three to five percentage points the sample size rises and conversely decreases by about one percentage point for every point below the five percent. This is statistical data 101 taught on almost every college campus in the country. Nothing anyone pays attention anymore they just run off and do the wrong thing and then run to the news with the results. Additionally I noticed the complete absence of sampling questions. any true empirical data selection process will always display the method by which thefinal tally was arrived at. Leading questions or questions that offer numerous versions of mutually exclusive responses immediately crash all the percentage markers used by true empirical data collection.
For instance a simple question to a selected households I could be to you in time to vote for President Donald Trump in November?
However more often than not the question is worded Thusly:
in view of this terrible leadership and the fact that he has demonstrated time and again a complete lack of regard for women will you find it feasible and moral to vote for Donald Trump and November or were you going to his opponent Joe Biden who was shown true leadership and has 40 plus yesrs as an American politician?
I rest my case.
Jo