Data - 1 Proportion
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You can have data in two forms: raw or summarized.

Raw data

Enter each sample in a numeric, text, or date/time column in your worksheet. Columns must be all of the same type. Each column contains both the events and nonevents for that sample.  Events and nonevents are determined by numeric or alphabetical order. Minitab defines the lowest numerical value, or the text value closer to the beginning of the alphabet, as the nonevent; the highest numeric value, or the text value closest to the end of the alphabet, as the event. For example:

·    For the numeric column entries of "20" and "40," observations of 20 are considered nonevents; observations of 40 are considered events.

·    For the text column entries of "alpha" and "omega," observations of alpha are considered nonevents; observations of omega are considered events. If the data entries are "red" and "yellow," observations of red are considered nonevents; observations of yellow are considered events.

You can reverse the definition of event and nonevent in a text column by applying a value order (see Ordering Text Categories)

With raw data, you can generate a hypothesis test or confidence interval for more than one column at a time. When you enter more than one column, Minitab performs a separate analysis for each column.

Minitab automatically omits missing data from the calculations.

Summarized data

Enter the number of trials and one or more values for the number of events directly in the 1 Proportion dialog box. When you enter more than one value for the number of events, Minitab performs a separate analysis for each one.