[SOLVED] STAT2053 Homework2-sampling distribution

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In this homework, you are required to construct the sampling distribution (of size n = 10) from a population (with population mean, Β΅=4.4 and standard deviation, Οƒ=2.15).Β  In order to simulate the sampling distribution of π‘₯Μ…, we have selected 50 samples (of size n = 10) with replacement from the population (with mean, Β΅=4.4 and standard deviation, Οƒ=2.15), and have calculated the corresponding sample means. Sample means (for the 50 samples) are given as R dataset in the course webpage.

  • Construct a relative frequency histogram for these 50 values of π‘₯Μ…. What is the shape of this distribution?
  • Find the mean and standard deviation of the 50 values of π‘₯Μ….
  • Compare the values calculated in part a to the theoretical mean Β΅ and the theoretical standard deviation πœŽβ„ for the sampling distribution of π‘₯Μ…. How close do the values calculated from the 50 measurements come to the theoretical values?

Deliveries:Β 

  1. The R code you developed (RStudio). For each question, you need to plot the data according to your needs.
  2. A report that includes the answers to the questions above.
  • Homework2-bsoh3l.zip