If a data sample of standing height of a U.S. males is done and shows a 95% confidence interval with a lower limit of five feet four inches tall and upper limit of 6 feet four inches tall, what is:

• The range within the 95% confidence interval
• The Error term
• The probability of a male being 6 foot 4 inches or taller (for example, less than 5%, around 2.5% or 1% and why?

Condence Intervals We Use Everyday Keeping It Real Discussion Please read through all sections before proceeding to the next page, and refer back whenever necessary. V Expand All A Collapse All ' Introduction Did you know condence intervals are also used to project reliability in consumer products? We use condence intervals in our daily lives. from consumer ratings to election projections. Seeing this data helps us make decisions on the best option to choose. If. for exampler one brand of refrigerator has a 17% chance of needing repair in the rst three years. A different brand may have a 3year repair rate of 19%. If a footnote says, "differences of more than 4% are meaningless," we can conclude that the repair rates really are not that different! However, any refrigerator with a repair rate more than 4% higher than 17% is more likely to need repair in the next three yea rs