A 95% confidence interval estimate for the difference between two population means (population mean 1 population mean 2) is determined to be  62.75 < mü1-mü2< 68.52. Which of the following is true if the confidence level is reduced to 90% A-) the confidence interval becames wider  B-) the confidence interval ramins the same  C-) the confidence interval becomes narrower  D-) more information is required to determine this answer

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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.