Which of the following statements can be a research hypothesis? Only one answer A) The aim of the study is to find out the relationship between variables A and B B) There is a significant difference between groups C) Variable A is contingent on variable B D) Variable A significantly and positively correlated with variable B
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- 1) Chi-square analysis generates a p value, an important indicator of statistical support for a hypothetical outcome. If a p value = 0.05 > p > 0.01, the tested hypothesis fails to be falsified. Agree/Disagree? Answer with explanation here:What is the null hypothesis? Group of answer choices a)The hypothesis that any patterns in the observed data is due to chance alone and therefore significant. b)The hypothesis that the observed data is invalid c)The hypothesis that any patterns in the observed data is due to chance alone and therefore not significant. A scientist usually accepts a p-value (or alpha level) of 0.05 as the threshold value to reject the null hypothesis. Group of answer choices a)True b)FalseIn an experiment, the control group is used to: a Change the variable b Provide a baseline for comparison with the test group c add additional non-dependent variables d demonstrate correlation rather than causation e generate hypotheses
- a) Does the data support your hypothesis? b) How could you improve this experiment? Consider the other factors you could have / should have controlled in this experiment.Compute and explain:a) Pearson-rb) Hypothesis testingList and explain the assumptions and uses of the Hardy-Weinberg Principle. Provideexamples (and data) for uses of HW.
- The following are reasons why randomized control trials (RCTs) are not used to investigate all research questions, except: a. RCTs can be expensive, which can make it difficult if funding is limited b. RCTs can be time-consuming, and it may take months and sometimes years to obtain final results c. For certain research questions and/or certain types of exposure variables, it may not be ethical to conduct an RCT d. RCTs are less valid than observational analytical study designsA business researcher is hired by a specialty retail firm. The retailer is trying to decide what level of lighting and what temperature they should maintain in its stores to maximize sales. Identify the independent variable and dependent variable in this case. How would the independent variable be manipulated to measure differences across the dependent variable. Include details about the experimental design including the experimental groups.What are the hypothesis, positive and negative controls of Griffith's experiment?