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The accompanying data show spot speeds collected at a section of highway located in a residential area. Using the studen
Posted: Sat Feb 19, 2022 3:15 pm
by answerhappygod
- The Accompanying Data Show Spot Speeds Collected At A Section Of Highway Located In A Residential Area Using The Studen 1 (122.61 KiB) Viewed 63 times
The accompanying data show spot speeds collected at a section of highway located in a residential area. Using the student's t test, determine whether there was a statisti- cally significant difference in the average speeds at the 95% confidence level. Before 40 35 38 37 33 30 28 35 35 40 33 35 36 36 40 After 23 33 25 36 37 34 23 28 24 31 24 20 21 28 35 Before 38 35 30 30 38 39 35 36 34 33 31 36 35 33 39 After 25 21 35 30 33 21 28 23 24 27 20 20 30 32 33 Using the data furnished in Problem 4-7, draw the histogram frequency distribution and cumulative percentage distribution for each set of data and determine (a) average speed, (b) 85th-percentile speed, (e) 15th-percentile speed, (d) mode, (c) median, and (1) pace.