3a. Tanya determines that she cannot rely on the average in the general population being 2...
3a. Tanya determines that she cannot rely on the average in the general population being 2 stomach aches per month. Therefore, she decides to take a different approach. Tanya splits her 64 participants into two groups – one group of 32 participants takes a fiber pill daily and the other group of 32 participants takes a placebo pill daily instead. If the fiber group reports an average of 1.7 stomach aches per month, with standard deviation 0.5, and the placebo group reports an average of 1.9 stomach aches per month, with a standard deviation 0.8, can Tanya conclude that taking fiber pills daily results in significantly fewer stomach aches?
3b. Construct the two-tailed 99% Confidence Interval that estimates the true population mean difference between the fiber group and the placebo group. Make sure to include a concluding statement explaining the meaning of what you calculated.
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3a. Tanya determines that she cannot rely on the average in the
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