Constructing a CDF in Excel 1 Reaction time Cumulative % Count 2 0.1 3 4 5 6 7 8 10 11 12 13 1.07 1.13 1.29 1.33 1.33 1.34 1.36 1.41 1.45 1.63 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1 2 3 4 5 6 7 8 9 10 1. Sort the reaction times from smallest to largest located under the data tab. 2. Label the next two columns 'cumulative %' and 'count' respectively. 3. In the 'count' column fill in '1' in the first cell, '2' in the second, '3' in the third and so forth. It helps to use a formula. Ex. in cell C2 use the formula =C1+1 and then you can drag down. In the 'cumulative %' column, calculate the percentage as the =count/(total number of points). So for the first cell, 'B2', you would have =C2/10 since there are 10 data points in this example. Note: the last cell should always equal one because at the end all of the cells or 100% of the observations are accounted for. 4. Lastly, highlight the reaction time (x-axis) and cumulative % (y-axis) columns and make a scatter plot.

Constructing a CDF in Excel 1 Reaction time Cumulative % Count 2 0.1 3 4 5 6 7 8 10 11 12 13 1.07 1.13 1.29 1.33 1.33 1.34 1.36 1.41 1.45 1.63 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1 2 3 4 5 6 7 8 9 10 1. Sort the reaction times from smallest to largest located under the data tab. 2. Label the next two columns 'cumulative %' and 'count' respectively. 3. In the 'count' column fill in '1' in the first cell, '2' in the second, '3' in the third and so forth. It helps to use a formula. Ex. in cell C2 use the formula =C1+1 and then you can drag down. In the 'cumulative %' column, calculate the percentage as the =count/(total number of points). So for the first cell, 'B2', you would have =C2/10 since there are 10 data points in this example. Note: the last cell should always equal one because at the end all of the cells or 100% of the observations are accounted for. 4. Lastly, highlight the reaction time (x-axis) and cumulative % (y-axis) columns and make a scatter plot.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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