A researcher is interested in the average time it takes a 3D printer to print a certain object. They time a random selection and end up with the following times (in seconds): 46, 53, 43, 45, 39, 42, 43, 44, 42, 48, 51, 50, 39, 43, which they pasted into R as print_times <- c(46,53,43,45,39,42,43,44,42,48,51,50,39,43). Use R to compute a 98% confidence interval for the mean printing time. (a) Give the R code that produces the interval. (b) Give the confidence interval computed in R. (c) Write a verbal interpretation of your confidence interval. (For example: We are xx% confident...)

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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.