2-Sample t This is done in a similar way to the 1-sample t. There are two differences. There are three ways the data may be given. See illustrations below. The “Graph” choices do not include Histogram. The graphs which are produced are “comparative graphs” meaning that the graphs of the two groups are shown side-by-side on the same scale to make comparisons easy. Both samples are in one column Each sample is in its own column Summarized data For each sample, type into the dialog box the following information: Sample size Sample mean Sample standard deviation
2-Sample t This is done in a similar way to the 1-sample t. There are two differences. There are three ways the data may be given. See illustrations below. The “Graph” choices do not include Histogram. The graphs which are produced are “comparative graphs” meaning that the graphs of the two groups are shown side-by-side on the same scale to make comparisons easy. Both samples are in one column Each sample is in its own column Summarized data For each sample, type into the dialog box the following information: Sample size Sample mean Sample standard deviation
ht_and_ci.docx