Keith Wilson | |
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Born | 19 September 1941 |
Died | 6 July 2011 | (aged 69)
Nationality | British |
Occupation | Production designer |
Keith George Wilson (19 September 1941 – 6 July 2011)[1] was a British production designer. He began his career at AP Films, working as an art assistant on Fireball XL5 (1963) and later Gerry Anderson productions. He created sets for Space: 1999 (1975–1977) and Star Maidens (1976).
Wilson died on 6 July 2011.[2]
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Understanding Confidence Intervals: Statistics Help
Transcription
Understanding Confidence Intervals In order to understand confidence intervals, we need to understand sampling and sampling error. To find things that about a population of interest, it is common practice to take a sample. A sample is a selection of objects or observations taken from the population of interest. For example, a population might be all apples in an orchard at a given time. We wish to know how big the apples are. We can't measure all of them so we take a sample of some of them and measure them. To find out about different sampling methods, see our video, "Sampling: Simple, Random, Convenience, etc." Inference is when we draw conclusions about the population from the sample. Because the sample was only a selection of objects from the population, it will never be a perfect representation of the population. Different samples of the same population will give different results. This is called sampling error or variation due to sampling. There will always be sampling error. Confidence Intervals When we express an estimate of a population parameter, it is good practice to give it as a confidence interval. A confidence interval communicates how accurate our estimate is likely to be. Say we wish to find out how big the apples are in our orchard. We put this as an investigative question: What is the main weight of all the apples in the orchard? We take a sample, and calculate the sample mean. This is the best estimate of the population mean. We use a confidence interval to express the range in which we are pretty sure the population parameter lies. In this case the population parameter is the mean weight for all the apples in the orchard. The width of a confidence interval depends on two things: The variation within the population of interest, and the size of the sample. If all the values in the population were almost the same, then our sample will also have little variation. Any sample we take is likely to be pretty similar to any other sample. Our estimate is going to be pretty close to the true population value. We would have a small confidence interval. But a more varied population will lead to a more varied sample. Different samples taken of the same population will differ more. We would be less sure that the sample mean was close to the population mean. Our confidence interval would be larger. So, greater variation in the population leads to a wider confidence interval. Sample size also affects the width of a confidence interval. If we take a small sample, we don't have much information on which to base our inference. Small samples will vary more from each other. There is more variation due to sampling, or sampling error, with a small sample. In larger samples, the effect of a few unusual values is evened out by the other values in the sample. Larger samples will be more similar to each other. The effect of sampling error is reduced with larger samples. When we take a large sample, We have more information and can be more sure about our estimate. The confidence interval can be smaller. There are several methods for calculating confidence intervals: When we use traditional confidence interval formulas, the stated level of confidence also effects the width of the confidence interval. All estimates of population parameters, such as means, medians, differences of means and differences in medians should be expressed as confidence intervals. You can learn more about how to calculate confidence intervals in our other videos.
Awards
Wilson won an Emmy for Outstanding Individual Achievement in Art Direction for a Miniseries or a Special for the TV film Stalin (1992) and was nominated for Outstanding Art Direction for a Miniseries or a Special for Great Expectations (1989). He also received a CableACE Award for Art Direction in a Dramatic Special or Series/Movie or Miniseries for The Old Curiosity Shop (1995).
Filmography
- The Hills Have Eyes 2 (2007)
- The Ten Commandments (2007)
- A Christmas Carol (TV film, 2004)
- The Blackwater Lightship (TV film, 2004)
- Dinotopia (TV mini-series, 2002)
- Victoria & Albert (TV mini-series, 2001)
- In the Beginning (TV mini-series, 2000)
- Mary, Mother of Jesus (TV film, 1999)
- The Seventh Scroll (TV mini-series, 1999)
- Miracle at Midnight (TV film, 1998)
- Oliver Twist (TV film, 1997)
- The Apocalypse Watch (TV film, 1997)
- Supply & Demand (TV series, 1997)
- The Little Riders (TV film, 1996)
- The Governor (TV series, 1995)
- The Old Curiosity Shop (TV series, 1995)
- Remember (TV series, 1993)
- Stalin (TV film, 1992)
- Fergie & Andrew: Behind the Palace Doors (TV series, 1992)
- L'Amérique en otage (TV series, 1991)
- Great Expectations (TV mini-series, 1989)
- The Lady and the Highwayman (TV film, 1989)
- Steal the Sky (TV series, 1988)
- A Hazard of Hearts (TV film, 1987)
- The Lion of Africa (TV series, 1987)
- Gulag (TV film, 1985)
- Out of the Darkness (TV film, 1985)
- Exploits at West Poley (TV series, 1985)
- Haunters of the Deep (1984)
- Slayground (1983)
- Memoirs of a Survivor (1981)
- Riding High (1981)
- Yesterday's Hero (1979)
- A Man Called Intrepid (TV mini-series, 1979)
- International Velvet (1978)
- Space: 1999 (TV series, 48 episodes, 1975–78)
- The New Avengers (TV series, six episodes, 1977)
- Star Maidens (TV series, 13 episodes, 1976)
- UFO (TV series, 26 episodes, 1970)
- The Secret Service (TV series, 1969)
- Captain Scarlet and the Mysterons (TV series, six episodes, 1967)
- Thunderbirds Are Go (1966)
References
- ^ "Summer 2011 Newsletter: In Memoriam – Keith Wilson" (PDF). British Film Designers Guild. 2011. Retrieved 21 August 2023.
- ^ "Genius Keith Wilson Dies". Archived from the original on 5 August 2011. Retrieved 9 July 2011.
External links
- Keith Wilson at IMDb
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