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- Provide an example of a research project in your hometown where you would choose to use a t-test for independent samples. Would you use a one-tail or two-tail test, and why? What is your null hypothesis and research hypothesis? If you have a sample size of 500, should you interpret the statistical significance or the effect size?Why might scientist point out the potentially hindering role that volunteer bias might play in the master and johson finding?What are the hypothesis, positive and negative controls of Griffith's experiment?
- What is the value of a random sample? Will random sampling always ensure that a sample is representative of a population? Explain your answer.What two observations prompted the wobble hypothesis?If possible please answer all four questions. For each hypothesis, identify the independent and dependent variable. Also, decide on an appropriate control group and form of data. Thank you.
- In 3-4 sentences, explain the difference between a null hypothesis and an alternate hypothesis. Then, give an example of each--in other words, make up a null hypothesis and an alternate hypothesis for a hypothetical experiment.Which of the following statement(s) is(are) true about meta-analysis?When i fail to reject the null hypothesis am I saying that I am supporting the hypothesis given or not?