Before beginning a new and costly advertising campaign, Starbucks would like to know how best to target their demographic. One of the connections they are interested in investigating is the relationship between gender and coffee consumption in college students. A random sample of 1200 U.S. college students is summarized below: Female Male

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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.