Disclaimer:

Disclaimer: While I am a paid undergraduate researcher for Texas Tech University, the opinions expressed on this blog are my own. The statements on this blog are not endorsements of views of Texas Tech University, The Honors College of Texas Tech University, or the math department of Texas Tech University, or any other department or campus organization of Texas Tech University.

Saturday, November 5, 2016

Close Swing States

This group of states is close enough where new polling in the next few days could change how my model calls the state.  These states are Arizona, Florida, Iowa, North Carolina, Nevada, Ohio, in the order of least likely to most likely to change under my model.  To be clear about when I pulled results time is included. All data is from Pollster (run by Huffington Post).  All times are from 11/05 and are in Central Standard Time.

Full Results:
Note some confidence intervals were corrected to have a nonnegative beginning since probabilities can't be less than zero.

1. Arizona 3pm - Trump, outside of confidence interval
The recent news from the FBI, and the fact that after the 2nd debate Arizona got less close, means Trump will probably win Arizona.  My main concern is that the hispanic vote (which leans towards Clinton) could  change the outcome of this state.  Polls are often based on likely voters which uses data from past elections, and if more hispanics vote in this election than ever before, the polls could be wrong. Republican have a lead in early voting, but it is close and not all registered Republican will vote for Trump.  But given the strong history of Republican wins in Arizona, and the polls, it seems like Trump will win. My model shows a Trump win, but a closer race than ever before.

2.  Florida 3pm - Clinton, outside of confidence interval
Florida is another close race.  Democrats have a small lead in early voting, but it is close.  My model shows a Clinton win by 3 percentage points, but I think personally it is closer than that. If Clinton can get Obama voters to turn out, she will win Florida.  She has a great ground game in Florida and I think she will  win there.

3. Iowa 3pm - Trump, outside of confidence interval
Iowa has been trending for Trump for the past month, but voting started in September, and early turnout for Republican was initially low. Now I think the race has stabilized and will be won by Trump.  This will also be a close race.

4.  North Carolina 4pm  -Clinton, outside of confidence interval
Like I have said before Clinton has a great ground game and organization. This will be close, but since President Obama and Michelle Obama have been to this state recently to get out the vote.  I think it is going to come down to the better run campaign. A recount could be likely here, maybe not on a statewide level, but in certain areas.

5. Nevada 4 pm - Clinton
I don't think Trump has enough support among Hispanics to win here.  Hillary Clinton has an ad with employees of the Trump Corporation talking about why they don't want him to be president.  The legalization of marijuana is on the ballot here, and I think that will draw out younger, more socially liberal voters who may not have otherwise voted.   I think there could be a recount in certain areas, because the race is so close.

6.  Ohio 4pm - My model - Clinton,  My personal opinion - Trump
Sometimes statistics don't work.  Normally they are right, and work well.  Since my model focuses on the average of polls which have mainly been Clinton leads before the the last few weeks.  So while the difference between my models two means is less than 1%, it is too big to call a Trump lead.  This doesn't mean my model is wrong or bad. Sometimes these things happen. If I had only included polls starting after the first debate, or did things different I could have gotten a result suggesting a Trump lead.  But to protect my research I decided this things in September.  This is a tough year.  Even the experts are making different calls than each other.  So while I think the FBI's announcements about both Hillary and Bill Clinton, and early voting data suggest that Trump will win Ohio, as a researcher I have to default to my model.  If a few new polls come out on Sunday or Monday with Trump leads it may tip the scales in my model, and I may post an update.  At the end of the day this was never about being right, but rather to test a model.  So while my gut tells me Trump will win Ohio, I have to admit that my model says Clinton will win.

1 comment:

  1. Full Results. I guess I forgot to post them. These are the original results.
    Arizona based on National
    Hillary's Mean: 0.43832292558
    Hillary's Std: 0.005741409669601736
    Hillary's CI: (0.4363018349874565, 0.44034401617171542)
    Trump's Mean: 0.451578287908
    Trump's SD: 0.006878715554919461
    Trump's CI: (0.4491568429851675, 0.45399973283070144)
    Other Mean: 0.0691543078634
    Other Std: 0.009079222347501303
    Other CI: (0.065958240708055685, 0.072350375018742932)
    Johnson's Mean: 0.0409444786491
    Johnson's SD: 0.006307579735341617
    Johnson's CI: (0.038724084913774853, 0.043164872384385586)

    Iowa based on National
    Hillary's Mean: 0.450240762128
    Hillary's Std: 0.005804075232077662
    Hillary's CI: (0.44800978843037659, 0.45247173582559957)
    Trump's Mean: 0.463345414508
    Trump's SD: 0.006673662279770701
    Trump's CI: (0.4607801884522823, 0.46591064056311082)
    Other Mean: 0.0457210170945
    Other Std: 0.00843688269901885
    Other CI: (0.042478043384009234, 0.048963990804992807)
    Johnson's Mean: 0.0406928062698
    Johnson's SD: 0.007915233464944339
    Johnson's CI: (0.037650344384904555, 0.043735268154724047)

    Florida based on National
    Hillary's Mean: 0.484056566093
    Hillary's Std: 0.0032073575589123414
    Hillary's CI: (0.48323113376803328, 0.48488199841791901)
    Trump's Mean: 0.455731403722
    Trump's SD: 0.004149630025944792
    Trump's CI: (0.45466347203813345, 0.45679933540668777)
    Other Mean: 0.0292854241257
    Other Std: 0.0035253238629554557
    Other CI: (0.028378161303023682, 0.030192686948466614)
    Johnson's Mean: 0.0309266060589
    Johnson's SD: 0.003492402013448872
    Johnson's CI: (0.03002781586767592, 0.03182539625006009)

    North Carolina based on National
    Hillary's Mean: 0.480955642269
    Hillary's Std: 0.003632900576667914
    Hillary's CI: (0.47997758638802179, 0.4819336981495127)
    Trump's Mean: 0.460549452595
    Trump's SD: 0.004010874319157518
    Trump's CI: (0.45946963795882056, 0.46162926723135134)
    Other Mean: 0.018580292575
    Other Std: 0.003605785136580725
    Other CI: (0.017609536760678484, 0.019551048389258172)
    Johnson's Mean: 0.0399146125612
    Johnson's SD: 0.004504283090437174
    Johnson's CI: (0.038701961547980356, 0.041127263574376578)

    Nevada based on National
    Hillary's Mean: 0.46992735658
    Hillary's Std: 0.00470331630941996
    Hillary's CI: (0.46843194589391107, 0.47142276726636373)
    Trump's Mean: 0.455276192651
    Trump's SD: 0.00424408965242274
    Trump's CI: (0.45392679222734456, 0.45662559307423811)
    Other Mean: 0.026346985803
    Other Std: 0.00397154435722848
    Other CI: (0.025084240650074932, 0.027609730956021948)
    Johnson's Mean: 0.048449464966
    Johnson's SD: 0.0060882762238686485
    Johnson's CI: (0.046513708846954972, 0.050385221085090463)

    Ohio based on National
    Hillary's Mean: 0.46626999018
    Hillary's Std: 0.00462433677231358
    Hillary's CI: (0.46487145659437185, 0.46766852376551954)
    Trump's Mean: 0.461025662838
    Trump's SD: 0.005044287862423553
    Trump's CI: (0.45950012386008154, 0.46255120181493059)
    Other Mean: 0.0320276743683
    Other Std: 0.00464781952313606
    Other CI: (0.030622038917661687, 0.033433309818911225)
    Johnson's Mean: 0.0406766726143
    Johnson's SD: 0.005641476228633831
    Johnson's CI: (0.038970526551285231, 0.042382818677238546)

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