A population has a mean of 200 and a standard deviation of 80. Suppose a simple random sample of size 100 is selected and is used to estimate u. Use z-table. a. What is the probability that the sample mean will be within +3 of the population mean (to 4 decimals)? b. What is the probability that the sample mean will be within ±14 of the population mean (to 4 decimals)?

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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.