You may need to use the appropriate appendix table to answer this question. Given that z is a standard normal random variable, find z for each situation. (Round your answers to two decimal places.) (a) The area to the left of z is 0.2420.   (b) The area between −z and z is 0.9232.   (c) The area between −z and z is 0.2128.   (d) The area to the left of z is 0.9948.   (e) The area to the right of z is 0.6554.

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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.