Emission standard

Population 3: Losers with high interest neighborhoods. Population 4: Losers with low interest neighborhoods. All of the calculations for this test were done by hand. I started by identify the populations that would be compared. I calculated the mean and standard deviation of each population and then calculated the degree of freedom between groups and within groups, and the total. Next, I determined the critical value according to the F Distribution chart, then calculated the grand mean, total…

1. QUESTION: Class, what does the correlation coefficients of -1, +1, and 0 tells you about the relationship between the two variables? It depends on the method one uses, but the Pearson correlation coefficient is the most widely used. Values in the form of numbers show the direction and how strong the relationship is between two different variables. These can range from -1.00 up to +1.00. If it is positive it is a direct relationship. For example, if one increases the other will also increase…

choose to research is the community of northeast China (or Dongbei in Chinese). People in this community speak Northeastern Mandarin, which is a dialect that is related to but obviously different from standard Mandarin. The research article examines language attitudes towards Northeastern Mandarin and Standard Mandarin. The article also discusses the implications of such attitudes and possible reasons behind language attitudes. In the introduction part, the author reviewed some important…

The demand for oil or gasoline in the United States is on a steady rise. With the increase of automobile users every year how can we afford to drop the price of gas. People are buying it, whether the price rises or falls, so why not keep it at a steady price. This all has to do with how oil firms perform in the short and long run. Also what and how much government influence has to deal with the way the price changes. Gas and oil prices play a major role in our economy, so when they rise or fall…

Basically, there should be a noticeable and systematic increase in the standard deviation based on an increase in size of the target circle, while the matching circle mean should stay close to the actual physical size of the target circle. In other words, it should be possible to see a progressive and regular increase in the standard deviation from a 10-, to a 30-, to a 50-pixel circle; and alternately, a systematic decrease in the standard deviation when moving in the opposite direction from…

in a review of experimental evaluations of PD programs in developed countries, Yoon et al. (2007) found that the academic achievement of students whose teachers participated in PD programs (about 49 hours of training on average) increased by 0.54 standard deviations compared to students whose teachers did not participate in PD. These positive findings lend credence to the efforts of policymakers from developing countries who are in favor of using PD to improve the quality of teaching in their…

obtained by expert witness’s must be based off of sufficient facts produced by applicable, reliable, principles and methods. In response to Daubert v. Merrill Daw Pharmaceuticals ( 509 U.S. 579 (1993), and other cases applying the Daubert standard. Under the Daubert standard the expert’s theory must be testable, the technique or theory has been publicized or subject to peer review, obtained a rate of error and success, and the theory must be generally accepted in the scientific community. The…

starch digested, was overall quite consistent. The average values for tube 2 which was at 4°C and tube 3 at 24°C were 0.03 mg/mL and 0.24 mg/mL respectively. The corresponding standard deviation values for tube 2 and 3 were found to be 0.037 and 0.063 respectively. Finally the standard error for tube 2 was 0.012 and the standard error for tube 3 was 0.021. Following the second experiment that determined the concentration of starch digested, a t-test was performed with the data collected. The…

A total of four hypotheses were examined using the following variables: feelings of tension and anxiety before and after watching a video in which a news story covered a student going to a college campus with the intent of harming people, perceived threat while watching the video, perceived threat while watching similar news coverages, the number of hours a day spent consuming news, and participant gender. First, to test the hypothesis that feelings of tension and anxiety will be higher after…

Results Table 1 shows the means and standard deviation of Red and Black coloured words recalled in Mozart’s music and no Music condition. Table 1. Means (and Standard Deviations) for experimental conditions. Word colour Music Condition Black words Red words Mean (±SD) Mean (±SD) Mozart’s Music…