he average height of men in the United States is 69 inches with a standard deviation of 2.5 inches. Assume that the distribution of heights is approximately normal. 1.What proportion of men is shorter than or equal in height to 67 inches? 2. What is the probability of selecting at random a man who is taller than 75 inches? 3.What is the standard error for a sample of N = 25 men based on this information? 4.For the middle 95% of men in the United States (a) what is the shortest height for a group of 25 men? (b) what is the tallest height for a group of 25 men?

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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.