Writing a conclusion about data shown in Xbar and R control charts
The exercise gives you 30 groups of 5 numbers each. You have to build a table indicating the Xbar, Xbar bar, R, Rbar, LCLx, UCLx and UCLr. Next thing is to plot the two graphs. I don't know the exact translation (I'm from Brazil) but they seem to be called x̅ and R charts. One of them is a graph consisting in 4 variables: Xbar, Xbar bar, LCL and UCL. The another one consists in 3: R, Rbar and UCL.
Last thing in the exercise is to write a conclusion about the graphs. There's no background to data, it represents a random process somewhere. I'm pretty sure I got the table and the graphs right because it's because just formulas, but I need a trusted conclusion about them. Both graphs show the same process so it's only one conclusion.
To clarify: the question is only about reading the graphs and writing a conclusion (34 lines, really basic), I explained the rest as context.
Answer
 The questioner was satisfied and accepted the answer, or
 The answer was disputed, but the judge evaluated it as 100% correct.

Thank you for your answer and specially for pointing that out on 28! I wouldn't have realized it on my own.
 answered
 251 views
 $2.95
Related Questions
 Mathematical modeling
 Computing mean, median, interquartile range, and standard deviation
 Explain how to get the vertical values when $n = 10$, $p = .5$, $\mu = 5$ and $\sigma^2 = 2.5$
 Correlation of Normal Random Variables
 A miner trapped in a mine
 Bayesian Statistics  Zero Inflated Binomial Model  Calculate Posterior Conditional Distribution
 Statistics involving a numerical variable and a nonnumerical variable (date)
 What does it mean for regression to only be normally distributed in the vertical direction and correlation to be normally distributed in horizontal and vertical directions?
Low bounty!
I thought it was two or three minute work for someone who knows... What do you suggest as a bounty?
This is not my area of expertise, but I am sure it would take way more than 23 minutes to understand this problem and write a good conclusion. Offer whatever you think is fair, hopefully it will get answered by someone else.