Solution-Draw a scatter diagram of the data treating wind

Draw a scatter diagram of the data treating wind speed

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Reference no: EM131667032

Wind Chill Factor.We all have experienced "wind chill". In the cold weather especially, when the wind blows on your exposed skin with increased speed, the perceived temperature seems to decrease. Might there be a linear relation between wind speed and the wind chill factor?

The wind chill "factor" depends on wind speed and air temperature. The data in the accompanying data file represent the wind speed (in mph) and wind chill factor at an air temperature of 15° Fahrenheit.

Access the data file below, which is an Excel spreadsheet with the wind chill data already populated. It is recommended you use Excel to answer the questions below:

(a) Draw a scatter diagram of the data treating wind speed as the explanatory variable. What kind of trend do you see in the data?

(b) Determine the linear correlation coefficient between wind speed and wind chill factor. Does this value alone imply a good linear relation between wind speed and wind chill factor?

(d) What do the residuals look like? Are they random or do they exhibit a trend?

(e) So after all this: Do you think the least-squares regression line is a good model? Why or why not? If not, what other kind of model might better explain the relationship between wind speed and wind chill factor?

Attachment:- data file.xlsx

Verified Expert

The assignment is based on relationship between wind chill factor and wind speed. It uses the concepts of regression and correlation. The graphs are made using Microsoft excel. There is a strong correlation between wind speed and wind chill factor.

Reference no: EM131667032

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Draw a scatter diagram of the data treating wind speed

Reference no: EM131667032

Reference no: EM131667032

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