How Standard Deviation Affects The Confidence Interval

Decent Essays
The standard deviation affects the confidence interval depending on whether or not the standard deviation increases or decreases. If there is an increase in the standard deviation I believe the margin of error will increase resulting in a larger confidence interval. To answer you second question, I do believe a wider population mean would be created with a wider standard deviation. I say yes because the standard deviation is the estimated sample of the

Related Documents

  • Improved Essays

    Nt1310 Unit 4 Case Study

    • 424 Words
    • 2 Pages

    It gives an estimated range of values which is likely to include an unknown population parameter, the estimated ranged being calculated from a given set of sample data. In the case study the customers complained that the bottling company provides less than 16 ounces of soda per bottle. The company needs to determine if there is enough evidence to conclude the soda bottles do not contain sixteen ounces. The size of the sample is 30 bottles that has a mean of 14.9 ounces.…

    • 424 Words
    • 2 Pages
    Improved Essays
  • Superior Essays

    This proportion is more successful than the expected success rate of 0.2, but still less than the woman’s success rate of 0.4 in part a of this question. This is because of the large sample size, 1000 vs 100 trials. The law of large numbers states that there is an improvement in precision as the sample size increases (Whitlock and Schluter, 2015, pg 185). Although the value is greater than the expected rate of success, it is starting to fall closer to the value of 0.2.…

    • 2314 Words
    • 10 Pages
    Superior Essays
  • Improved Essays

    The majority of the people surveyed do agree with the Texas voter ID law. The survey was conducted September 23 to September 24 with 15 people surveyed. After calculating the percentage it came out to be 86.7% said yes to the question “The Texas voter ID law requires people to show a state-issued photo ID in order to vote. Do you approve of this law?”. The margin of error came out to be 25.3, which is relatively high due to the small sample size out of the population.…

    • 293 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    William Ward Assignment (no more than 2 pages single-spaced): 1. What does Abelson mean by “Statistics as a principled argument” in your own words? By a principled argument, I believe that Abelson means that there should be a method to statistics. Not necessarily that it should be overly formalized or technical, but one with sound judgement.…

    • 802 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    The Electoral College: The System in Which the Loser Can Win Contrary to popular belief, when the public goes to the polls every fourth November to vote for the president, they are not actually voting for the president directly. In fact, a candidate could win the election even if only less than 22% of the population votes for them (Grey). Essentially, the vote of the people does not matter; it is the votes cast by the Electoral College that really determine who the next President of the United States will be. The Electoral College is a complex system that was created by the founding fathers and is, needless to say, flawed.…

    • 1595 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    According to my survey findings, exactly half the respondents thought the Electoral College should be abolished and the other half thought it shouldn’t. My survey was conducted for two days: September 23rd and September 25th. On the 25th 5 out of the 6 respondents said that the Electoral College should not be abolished. While on the 23rd, majority said the Electoral College should be abolished.…

    • 393 Words
    • 2 Pages
    Improved Essays
  • Great Essays

    Confidence: A Different Tool to Break Through the Glass Ceiling? Women’s rights has almost always been a theme in the history of our society for the past few centuries, but today it is important in the professional sense. As a society we have been slowly but steadily making progress in gender equality in a variety of forms, but as one of the most progressive countries in the world, why are only 4% of the Fortune 500 CEOs women? In “The Confidence Gap”, Katty Kay and Claire Shipman examine the difference in confidence levels between men and women, and how this disparity can change.…

    • 1477 Words
    • 6 Pages
    Great Essays
  • Improved Essays

    By only focusing on what is happening in one’s immediate world and falling back onto focusing on those who reaffirm one’s beliefs, a confirmation bias is created making it simple to fall into a social media niche. Via social media, there are two ways to reach many people, write something incendiary and receive an influx of hate/support, or keep to non-political issues and focus on noncontroversial items. Social media are an overall distraction from important problems. The manipulation of the media can be entertaining, such as satirical sites like the Onion. But when other websites are less well-known, it can cause confusion and spread ignorance.…

    • 515 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Carpi and Egger’s reading “Uncertainty, Error, and Confidence” discusses how there will always be a small portion of error in all scientist’s works. However, there are two different types of error: statistical and systematic and the main difference between the two is that statistical error is random and systematic error can be compensated for during an experiment. Scientists do not report just a single value as a measurement due to these types of errors in experiments, they report a certain range of values, which is a confidence interval. Another key aspect within the reading is in regards to uncertainty. Scientists must accept and realize that there will be errors within the measurements, thus a sense of uncertainty.…

    • 306 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Power Of Doubt Analysis

    • 556 Words
    • 3 Pages

    The Power of Doubt "At the bottom of great doubt lies great awakening. If you doubt fully, you will awaken fully" (5). With these words Hakuin Ekaku, one of the most influential figures of Buddhism, expresses how doubt can trigger the truth in different situations. Many times, it is in belief rather than knowledge where the proofs for the truth are founded. This is reflected in the play “Doubt”, in which John Patrick Shanley puts ambiguity at the service of meaning, showing how “doubt can be a bond as powerful and sustaining as certainty” (6).…

    • 556 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Standardized Test Bias

    • 1695 Words
    • 7 Pages

    From analyzing the definition above, it is clear that standardized tests are not biased by any means. A computer is in charge of all of the grading, therefore a teacher does not have any impact on the score of the exam. In the previous years, teachers were able to make up their mind about a student’s grade. If the teacher was not fond of the student, it is obvious as to what the grade would possibly look like. Standardized tests eliminate this bias and give students a fair opportunity to all score well on the assessment.…

    • 1695 Words
    • 7 Pages
    Improved Essays
  • Superior Essays

    Confirmation Bias Essay

    • 2410 Words
    • 10 Pages

    Confirmation Bias When an investigation for a case begins, the law enforcement is trying to gather the most evidence that will help in solving the case. This could include many things such as physical evidence or eyewitness testimonies. Sometimes making the legal system unfavorable at times for many reasons such as, evidence getting lost or destroyed or the eye witnesses not being able to remeber correctly. The public and the law enforcers are constantly looking for new ways to improve the criminal justice system as times goes on and change. This paper will help to understand some changes that can happen to improve confirmation bias and how to implement these changes into the criminal justice system.…

    • 2410 Words
    • 10 Pages
    Superior Essays
  • Improved Essays

    The topic of abortions can be a rather emotional situation to discuss, but if the reader can find trustworthy information it can help make talking about it easier. “American Choose “Pro-Choice” for First Time in Seven Years” and “The Fight for Choice” are the two articles that will be compared and contrast to help educate and provide which is more reliable. “American Choose “Pro-Choice” for First Time in Seven Years” is more dependable because of the statistics, the author Lydia Saad for being unbiased, and the whole purpose of the article is to provide information on how pro-choice is increasing throughout years. “American Choose “Pro-Choice” for First Time in Seven Years” was written May 29, 2015 by Lydia Saad and published by The Gallop Poll. Saad is a senior editor for The Gallop Poll which is an…

    • 1049 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Philosopher’s musings or debates can sometimes in fact span decades. One such philosopher’s debate is the relationship between doubt and certainty. William Lyon Phelps believed that with certainty you could accomplish almost anything. On the other hand and a stark contrast to Phelps, Bertrand Russell was of the sound mind that no one should be certain of anything, even their own opinions. While both intelligent minds bring up good points in their own respective way, both fail to recognize the complex, intricate system that makes up the human mind.…

    • 1005 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    DISSERTATION CRITIQUE 1. Use APA format to cite the dissertation that you reviewed. Jeong, H. W. G. (2010). Teachers ' perceptions regarding gifted and talented early childhood Students (Three to eight years of age)…

    • 1200 Words
    • 5 Pages
    Improved Essays