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Does LTE network performance vary between providers? The file LTE contains the download speed (in Mbps) on LTE connections of AT&T and Verizon providers in
Does LTE network performance vary between providers? The file LTE contains the download speed (in Mbps) on LTE connections of AT&T and Verizon providers in 31 U.S. large metro markets.
- At the 0.05 level of significance, is there evidence of a difference in the mean download speed between AT&T and Verizon?
- What assumption is necessary to perform this test?
- Construct and interpret a 95% confidence interval estimate of the difference in the mean download speed between AT&T and Verizon.
PLEASE SHOW WORK WITHOUT USING EXCEL
Region | AT&T (Mbps) | Verizon (Mbps) |
Atlanta-Sandy Springs-Roswell | 15.29 | 23.18 |
Austin-Round Rock | 14.97 | 19.91 |
Baltimore-Columbia-Towson | 16.12 | 16.33 |
Boston-Cambridge-Newton | 14.97 | 16.26 |
Chicago-Naperville-Elgin | 16.19 | 25.64 |
Cincinnati | 12.79 | 14.24 |
Columbus | 13.28 | 17.33 |
Dallas-Fort Worth-Arlington | 12.96 | 17.05 |
Denver-Aurora-Lakewood | 10.21 | 10.23 |
Detroit-Warren-Dearborn | 14.21 | 23.64 |
Houston-The Woodlands-Sugar Land | 13.06 | 13.54 |
Indianapolis-Carmel-Anderson | 13.40 | 21.38 |
Kansas City | 15.17 | 19.81 |
Los Angeles-Long Beach-Anaheim | 13.62 | 20.03 |
Miami-Fort Lauderdale-West Palm Beach | 10.67 | 24.52 |
Minneapolis-St. Paul-Bloomington | 10.53 | 23.38 |
New York-Newark-Jersey City | 12.54 | 17.37 |
Orlando-Kissimmee-Sanford | 11.14 | 19.39 |
Philadelphia-Camden-Wilmington | 15.22 | 12.92 |
Phoenix-Mesa-Scottsdale | 11.16 | 15.45 |
Portland-Vancouver-Hillsboro | 11.79 | 16.43 |
Riverside-San Bernardino-Ontario | 14.63 | 21.68 |
Sacramento--Roseville--Arden-Arcade | 15.41 | 21.72 |
San Antonio-New Braunfels | 11.58 | 10.52 |
San Diego-Carlsbad | 14.51 | 19.00 |
San Francisco-Oakland-Hayward | 15.42 | 21.64 |
San Jose-Sunnyvale-Santa Clara | 14.54 | 17.88 |
Seattle-Tacoma-Bellevue | 13.52 | 17.85 |
St. Louis | 13.22 | 20.12 |
Tampa-St. Petersburg-Clearwater | 12.74 | 23.05 |
Washington-Arlington-Alexandria | 14.87 | 13.67 |
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