Question: Fit a simple linear regression model for the Formaldehyde data set that forces the regression line to pass through the orgin Give a 90% confidence

Fit a simple linear regression model for the Formaldehyde data set that forces the regression line to pass through the orgin

Give a 90% confidence interval for the mean annual rainfall in the United States using the precip data set.

This is inbuilt dataset

For the dataset in r chunk

data(precip)

data(Formaldehyde)

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