The distribution of scores on the SAT test is approximately normal with μ = 500 and σ = 100. a. What proportion of the population have SAT scores above 575? b. What proportion of the population have SAT scores below 520? c. What is the minimum SAT score needed to be in the highest 30% of the population? d. What SAT score separates the top 65% from the rest of the distribution?

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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.