400 incoming freshman were asked of their intended major and
400 incoming freshman were asked of their intended major, and 95 of them said business or some business related field. Find a 98% confidence interval for the proportion of incoming freshman who will major in business or a business-related field.
Which formula from the list above would be used to solve this problem?
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Solution
Formula 4 is used
CI =Confidence Interval
A 98% CI will have a z* = 2.326 from the Standard Normal table
CI = (95/400)
