A researcher selects a sample and administers a treatment for anxiety to the individuals in the sample. If the sample is used for a hypothesis test, what does the null hypothesis (H0) put forth about the treatment? Group of answer choices The treatment has an effect on anxiety. The treatment divides each anxiety score by a constant. The treatment multiplies each anxiety score by a constant. The treatment has no effect on anxiety.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.