QNT 351 R5 Week 5 Individual Assignment Probability Worksheet*****Already A++ Rated Tutorial Use as Guide Paper*****

Search the Internet for U.S. climate data.

 

Choose the city in which you live: Washington, D.C. 

 

Click on the tab that reads “Daily.” 

 Prepare a spreadsheet with three columns:  Date, High Temperature, and Low Temperature.  List the past 60 days for which data is available.

 Prepare a histogram for the data on high temperatures and comment on the shape of the distribution as observed from these graphs.

 Calculate   and S. 

 What percentage of the high temperatures are within the interval    – S to   + S?

 What percentage of the high temperatures are within the interval    – 2S to   + 2S?

 How do these percentages compare to the corresponding percentages for a normal distribution (68.26% and 95.44%, respectively)?

 Repeat Parts 2 to 6 for the minimum temperatures on your spreadsheet. 

 Would you conclude that the two distributions are normally distributed?  Why or why not?

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