Question: Using Rstudio. I am having trouble isolating just the five years olds from this data set of multiple ages. Assume that for all the 5

Using Rstudio. I am having trouble isolating just the five years olds from this data set of multiple ages. Assume that for all the 5 years old children, over 50 pounds considered as overweight. Assume 10% of 5 years old children are overweight. Does the data support this assumption? Find a 95% CI for
the mean of weight of all the 5 years old children and a 90% CI for
the standard deviation of the weight of the 5 years old children

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