RNA world hypothesis

level of confidence from Salkind’s chart. Based on these results, the null hypothesis is rejected for these tests. This along with higher mean averages for ADHD children suggests that the ADHD children did indeed outperform their non-ADHD classmates. The evidence showing no difference in performance on some tests (above) and ADHD children outperforming their peers on others, contradicts Colombo-Dougovito’s research hypothesis that children with ADHD are less physically fit than those without…

Answer the following question: Define the term statistical hypothesis. A hypothesis that is testable on the basis of a process being observed through a set of random variables. Define the terms null hypothesis and alternative hypothesis. The term null hypothesis refers to a general statement or a default position in which there is no relationship between two measured phenomena or no difference among groups.In other words, it is a simple hypothesis that is related to a contradiction to a theory…

The null hypothesis stated that there is no difference in genetic variability or heterozygosity between the wild and founding populations. Based on the statistical Chi-square test comparison of genetic diversity between populations, the null hypothesis is valid and should not be rejected. The SPSS statistical results yielded a chi-square value of 0.773a and a P-value of 0.942 (Table 2). 0.942 is greater than 0.05, which means that statistically, there is no significant difference between the two…

Wind Direction’s Effect on Flour Beetle Search Behavior INTRODUCTION ϖ Background Beetles are arthropods and generally classified as insects (General Biology, 2014). The flour beetle (Tribolium spp.) is commonly found in flour mills, food storage warehouses, and even homes, where it feeds upon flour and other grains (General Biology, 2014). Though flour beetles are harmless, they are a huge agricultural problem (General Biology, 2014). Due to their status as an agricultural pest, it is…

Similar studies, same hypothesis, different results. Which study is reliable? Bushman and Anderson (2009) claimed that media violence can cause desensitization in people. Even though there are many criticisms about their previous works (Block & Crain, 2007; Deselms & Altman, 2003), no limitations have been found regarding their 2009 research paper. However, there are studies which found opposite or different outcomes. For instance, Fanti and his colleagues conducted an experiment in order to…

This refers to a positive whole number that indicates the lack of restrictions in calculations. The following states below: (rows-1)(columns-1) = (4-1)(5-1)= 3= 12 Critical Value: In hypothesis testing, the critical value is a number that separates a region where the null hypothesis will not be rejected from a region where it will be rejected. It is achieved at a particular percentile range and is then determined using a chart, known as the distribution topic.” The equation below states the…

correct responses and mean reaction time by observing pre-calculated students t-test. This particular assessment compared the students’ response times and mean correct responses in picture-recognition tests and facial-recognition tests. The null hypothesis for this case is that there is no difference in the mean response time or average number of correct responses…

Results When we look at the results we must compare a native to a non-native to determine if the hypothesis is true. We determined earlier that we will compare American holly with Japanese privet, red bay with Florida anise tree, and kalmia with rhododendron. The American holly seemed to have more healthy leaves than the holly but not by much. The holly had 127 leaves with no damage while the privette had 139 leaves with no damage. The holly then had 97 leaves with less than ten percent damage…

Soil preference of the Red Compost Worms, Eisenia fetida INTRODUCTION Earthworms provide countless benefits to humans, plants and animals, by improving drainage, advancing nutrient accessibility, and providing a steady soil system, helping to develop farm production. They benefit the soil ecosystem by decomposing and recycling organic matter, opening up pores inside the soil to develop its formation and supplying food for predators . By adding nutrients to the soil they inhabit, earthworms are…

This rating is not close to 1.0. The high F ratio and low P value justifies the rejection of the null hypothesis. Rejection of the null hypothesis affirms that all three of the recruiting initiatives did not have the same impact on the applicants who completed the Likert-scale. Two of the recruiting methods had similar average ratings, but the third indicates the recruiting…