1. a) Critically discuss the rationale for null hypothesis significance testing. Include a description of the underlying statistical theory and limitations associated with this approach to inferential testing.(750 words)
2. b) Explain and critically discuss the application of confidence intervals (CIs) to inferential testing. Your answer should explain what CIs are, their strengths and factors which influence the width of a CI. (750 words)

c) You have been provided with a file containing data from a sample of n = 253 participants who took part in a cross-sectional survey of community volunteers in Australia.  Select two hypotheses from the three listed below. For both hypotheses, your task is to select and conduct an appropriate bivariate statistical test using an online calculator

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