Reconsider the study about one of the authors wanting to find out whether the SPF of sunscreens
Question:
Reconsider the study about one of the authors wanting to find out whether the SPF of sunscreens used by students at her school (which is in a very sunny part of the U.S.) exceeds 30, on average. a. In the context of this study, is the theory-based approach (one-sample t-test) valid to find a p-value to investigate whether the data provide evidence that the average SPF of sunscreens used by students at this school exceeds 30? Explain. b. Regardless of your answer in (a), use the Theory-Based Inference applet to conduct a one-sample t-test to find and report a standardized statistic (t statistic) and a p-value. c. Interpret the p-value reported in (b). d. State your conclusion from this study based on the p-value reported in (b), being sure to provide justification for your conclusion.
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