12/26/2019 0 Comments
Different Proportion of M&M Candies in Each Colour between Two Sample Proportions - Research Paper Example There were 1535 blue candies in the bag out of 7356 candies and the proportion of blue candies is 0.2087. The 95% Confidence Interval is (0.1994, 0.218). There were 1587 orange candies in the bag out of 7356 candies and the proportion of orange candies is 0.2157. The 95% Confidence Interval is (0.2063,0.2251). There were 1320 green candies in the bag out of 7356 candies and the proportion of green candies is 0.1794. The 95% Confidence Interval is (0.1707, 0.1882). There were 925 yellow candies in the bag out of 7356 candies and the proportion of yellow candies is 0.1257. The 95% Confidence Interval is (0.1182, 0.1333). There were 990 red candies in the bag out of 7356 candies and the proportion of red candies is 0.1346. The 95% Confidence Interval is (0.1268, 0.1424). There were 999 brown candies in the bag out of 7356 candies and the proportion of brown candies is 0.1358. The 95% Confidence Interval is (0.128, 0.1436).The sample size in estimating the proportion is 438. In testing whether the given sample proportion of blue candies (0.2087) matches with the population proportion 0.24 of blue candies. The hypothesis is rejected (Z=-6.291) since the observed value is less than the expected value -1.96. Hence there is a significant difference between the sample proportion and population proportion. In testing whether the given sample proportion of orange candies (0.2157) matches with the population proportion 0.2 of orange candies, the hypothesis is rejected (Z=3.3754) since an observed value is greater than the expected value 1.96. Hence there is a significant difference between the sample proportion of orange candies and population proportion of orange candies. In testing whether the given sample proportion of green candies (0.1794) matches with the population proportion 0.16 of green candies, the hypothesis is rejected (Z=4.5492) since the observed value is greater than the expected value 1.96.
12/13/2019 0 Comments
Homicide in England and Wales - Essay Example
Table 1. Select data on crime, figures and Source: Home Office 2010, p. 31 Based on Table 1 which was taken from Table 2.04 of Home Office (2010, p. 31), violators for the offence of manslaughter was 739 in 1997, 750 for fiscal year 1998-99, 766 for 1999-00, 850 for 2000/01, 891 for 2001/02, and 1,047 for 2002/03. According to the statistics in the document, the offence count for manslaughter has been decreasing for the period 1999 to 2002/03. Beginning 2003/04, however, the trend was reversed. Instead of an increasing offence count for manslaughter, we have instead a generally decreasing victim count. The victim count for manslaughter decreased from 1,047 in 2002/03 to 904 in 2003/04, to 868 in 2004/05, to 764 in 2005/06, and to 758 in 2006/07. The count for manslaughter slightly increased to 774 in 2007/08 but it decreased to 657 in 2008/09 that is way below the count in 2006/07, decreasing further to 615 in 2009/10. The offence for manslaughter decreased by 6% in 2009/10 compared to its level in 2008/09. The count for attempted murder generally followed the trend for manslaughter. The count for â€œattempted murderâ€ in 2009/10 at 588 is much lower than its count in 1997 in 652, even if the count for â€œattempted murderâ€ increased by 2% from its count of 576 in 2008/09 to its count of 588 in 2009/10. As of 2007/08, the offence â€œthreat or conspiracy to murderâ€ remains high because the offence remains in several thousand cases. However, we should note that the offence count for â€œthreat or conspiracy to murderâ€ in 2007/08 level at 9,962 is close to its count in 1997 at 9,340. More important, however, we must note that its count of 9,962 in 2007/08 is about half to far less than half of the offence count in a total of four years or from 2002/03 to 2005/06. The offence count for â€œthreat or conspiracy to murderâ€ in 2007/08 at 9,962 is also way below than its count of 12,822 in 2006/2007. Further, it is very important to point out that the count for the offence â€œthreat or conspiracy to murderâ€ has been consistently decreasing since 2002/03. It is also important to emphasize that the consistent decrease in the count has been going on for at least five years. The data appears to suggest that both the offence of manslaughter, the offence of attempted murder, and the offence of â€œthreat or conspiracy to murderâ€ are all on the decline. Meanwhile, the offence count for â€œpossession of weaponâ€ consistently increased from 1998/99 to 2004/05. Beginning 2005/06 until 2007/2008, there is a consistent decrease in the offence count but it does not seem substantial because the offence count was not restored close enough to its count level during and near the period 1998/99. The figures in Table 1 validate an important point against capital punishment or the death penalty. Although capital punishment has been abolished in England and Wales, the abolition of the death penalty did not present an obstacle for many important crimes or offence to be reduced. According to Radelet and Lacock (2009, p. 490), criminologists have been interested whether capital punishment is really effective in deterring crime or if the absence of death penalty would increase the crime rate and incidence. Table 1 from Home Office (2010) provides an important answer. As shown by the data and by our discussion of the offence count in manslaughter, â€œattempted murderâ€, and â€œthreat or conspiracy to murderâ€, the absence of a death penalty will not imply an absence
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