answer and R code for: 'h' and 'i' The built-in data set, rock, is a data frame recording the measurements of rock sample from a petroleum reservoir. We are interested in the area column of rock. Using R we can convert this column into the vector x by theassignment x<-rock$shape. Assume that the n area measurements x=(X₁, X2,...,xn) are a random sample from a population with true unknown mean μ and true unknown variance 02. Remember, let x be defined by x<-rock$shape.a) Calculate, n, the number of elements in x.b) Calculate the sample standard deviation s, of x.c) Estimate true mean μ, using this data by calculating the sample mean.d) Calculate the sample variance of x.e) Calculate the interquartile range of x, using R.f) Calculate the 50th percentile of x using R.g) Calculate a48trimmed mean for x using R.h) Since the sample size is >30 we can create a confidence interval for μ using a normal critical value. If we want the confidence interval to be at the 94% level and we use a normal critical value, then what critical valueshould we use?i) Calculate a 94% confidence interval(using a normal critical value) for μ.(j) How long is the 94% confidence interval just created in part i?k) Copy your R script for the above into the text box here.

h) Confidence level is 94% i.e., 0.94. Significance level α=1-0.94=0.06

Answered: answer and R code for: 'h' and 'i'

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answer and R code for: 'h' and 'i'

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter5: A Survey Of Other Common Functions

Section5.3: Modeling Data With Power Functions

Problem 2E: Planetary Velocity The following table gives the mean velocity of planets in their orbits versus...

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