Hypothesis

Hypothesis test How to find the sample size for analytical studies and experiments? State the null and alternative hypothesis. Choose the statistical test based on the type of predictor and outcome variables. Choose an appropriate effect size. Set type 1 (alpha) and type 2 (beta) error. Use the appropriate table to to look for the corresponding sample size. Basic Concepts Hypotheses: Null and Alternative hypotheses People often look into statistical relationship through the test of…

available in the Campus Lake? Population Ecology Experiment Null Hypothesis: The presence of Blue-Green Algae will not have an effect on the Chlamydomonas population. Alternative Hypothesis: The presence of Blue-Green Algae will have an effect on the Chlamydomonas population. Community Ecology Experiment Null Hypothesis: Nitrate concentration will not have an effect on chlorophyll levels in the Campus Lake. Alternative Hypothesis: Nitrate concentration will have an effect on chlorophyll…

My null hypothesis would state that between adult learners taking a course online or in a class setting, there is no difference between midterm tests, on the occasion that both groups take a proctored midterm test. My alternative hypothesis would state that between adult learners taking a course online or in a class setting, there is a difference between midterm tests, on the occasion that both groups take a proctored midterm test. My target population would be first-year students taking college…

her Ted Talk clip, the aquatic ape hypothesis is an interesting take on human evolution. The hypothesis revolved around the idea that human beings evolved from “aquatic apes,” or our early ancestors who called that water their home. This hypothesis takes from the fact that humans share many characteristics with other marine mammals, such as being “naked,” having a layer of fat inside the skin, and having conscious control over breathing. Before this hypothesis, however, another theory for…

Question 1 Null hypothesis The null hypothesis, which is symbolically expressed as H0, is a statement that indicates no difference between a parameter and a specific value or between two parameters. Alternative Hypothesis The alternative hypothesis, which is symbolically expressed as HA or H1, is a statement that indicates the presence of a difference between a parameter and a specific value or between two parameters. Decision Rules On testing the null hypothesis, two main decision rules are…

The efficient market hypothesis (EMH) is widely used to analyse the financial market and security prices. The EMH is efficient if public information is totally reflected by asset prices (Malkiel, 2003, p.59). Malkiel (2003, p.59) implies that information of stock market was exactly shown by security market. In the last ten years, the EMH had significant effect on the financial market. This essay aims to show the three main types of the EMH and analyses if the EMH works in the real market economy…

was inside the black bottle was to understand the basic elements of the scientific inquiry process. We hypothesized that there was a push pin and string inside the unknown bottle—this was based on observations. In order to determine whether our hypothesis was correct or not, we massed out the unknown bottle, an empty bottle, and items that could potentially be inside the bottle. We also put items inside the empty bottle and compared the sound to the unknown bottle. The results showed that there…

differences between these species and using those evidence to support the hypothesis, or vice versa. Base on the researches from Sexual dimorphism and foraging behavior of Emerald Toucanets Aulacorhynchus prasinus in Costa Rica (Riley et al. 2016), using the similar method as this article suggested to find out evidence for supporting the hypothesis. If the experiment rejects the null hypothesis, this means that the hypothesis is true and testable that the fitness of this species is influenced by…

Furthermore, allowed them to generate their hypothesis of experimenting upon the correlation between crime and beauty. Sigall and Ostrove stated two hypothesis, one being that expected beautiful defendants would receive lighter punishments when their beauty was unrelated to the crime (e.g., burglary) compared to an unattractive defendant, or defendant whose beauty was unknown and the second hypothesis being that if the crime involved using one’s beauty to persuade innocent…

This experiment is the study on the effects of household drugs on the circulatory functions of the blackworm, Lumbriculus variegatus. Household drugs, such as tea, coffee, tobacco, and cigarettes, are easily accessible and may be used every day by a typical human being. These household drugs contain caffeine and nicotine at different concentrations. In addition, caffeine (found in tea and coffee) and nicotine (found in tobacco and cigarettes) can influence the behavior of physiological processes…