Suppose we want to estimate the annual high temperatures of the hottest major cities in the United States. Below is data from 12 cities with the average annual temperature taken from 1971 to 2000 (https://www.statista.com/statistics/226809/us-cities-with-the-highest-annual-temperatures/). City Temperature (Fahrenheit) Phoenix, Arizona 87.2 Miami, Florida 84.3 Orlando, Florida 82.8 Riverside, California 80.9 Austin, Texas 79.8 Houston, Texas 79.7 San Antonio, Texas 80.3 80.1 Las Vegas, Nevada 79.3 Jacksonville, Florida 78.2 New Orleans, Louisiana 81.7 Tampa, Florida 75.2 Los Angeles, California

Q: How was relative risk calculated? Make a 2 by 2 table to display the data.

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A: Solution To find the confidence interval we will use the z distribution i.e. z critical value.

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Q: When would it be appropriate to use a histogram as opposed to a scattergram?

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A: Please find the explanation below. Thank you

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Q: What is the goal of statistics?

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