Question: Construct and interpret a 95% confidence interval for the nutrition rating for a randomly chosen cereal with sodium content of 100. Open the California data

Construct and interpret a 95% confidence interval for the nutrition rating for a randomly chosen cereal with sodium content of 100. Open the California data set (Source: US Census Bureau, www.census.gov, and available on the book website, www.DataMiningConsultant.com), which consists of some census information for 858 towns and cities in California. This example will give us a chance to investigate handling outliers and high leverage points as well as transformations of both the predictor and the response. We are interested in approximating the relationship, if any, between the percentage of townspeople who are senior citizens and the total population of the town. That is, do the towns with higher proportions of senior citizens (over 64 years of age) tend to be larger towns or smaller towns? Use the California data set for Exercises 86–92.

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