The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 4 ounces. 18 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. For the 18 people, find the probability that the average coffee consumption is between 14 and 15.5 ounces of coffee per day.  For part d), is the assumption that the distribution is normal necessary? YesNo Find the IQR for the average of 18 coffee drinkers. Q1 =  ounces Q3 =  ounces IQR:  ounces

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.