A counselor is looking to see if not listening to music increases the breathing rate. Below is the data of 4 people who went through music therapy.   Music Without Music 53 61 67 72 54 57 61 64   a) What is the null and alternate hypothesis?   A   Ho: μD≠0; H1: μD=0   B   Ho: μD=0; H1: μD≠0        C   Ho: μD<0; H1: μD>0 D     Ho: μD>0: H1: μD<0   b) What is Md? c) What is SMd? d) What is df? e) What is positive tcrit for an α=0.05? f) What is tobs? g) Do we reject the null?

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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.