ANSWER: The above pivot table shows counts (as percentages of row) of heart attack versus birth weight, where birth weight has been grouped into categories. The percentages in each category with heart attacks have then been plotted versus weight at birth as shown in the histogram. It appears that the likelihood of a heart attack is greatest for light Country % IT % Change babies, and then decreases 2.5% 1.6% steadily, but increases slightly 4.1% 2.2% for the heaviest babies. 4.5% 2.0% 5.5% 1.8% 8.3% 2.7% 8.3% 2.7% 31. The table shown below 8.3% 3.3% contains information 12.4% 3.7% technology (IT) investment as a percentage of total investment for eight countries during the 1990s. It also contains the average annual percentage change in employment during the 1990s. Explain how these data shed light on the question of whether IT investment creates or costs jobs. for eight countries during the 1990s ANSWER:
ANSWER: The above pivot table shows counts (as percentages of row) of heart attack versus birth weight, where birth weight has been grouped into categories. The percentages in each category with heart attacks have then been plotted versus weight at birth as shown in the histogram. It appears that the likelihood of a heart attack is greatest for light babies, and then decreases steadily, but increases slightly for the heaviest babies. 31. The table shown below contains information technology (IT) investment as a percentage of total investment for eight countries during the 1990s. It also contains the average annual percentage change in employment during the 1990s. Explain how these data shed light on the question of whether IT investment creates or costs jobs. Country % IT % Change 2.5% 1.6% 4.1% 2.2% 4.5% 2.0% 5.5% 1.8% 8.3% 2.7% 8.3% 2.7% 8.3% 3.3% 12.4% 3.7% for eight countries during the 1990s ANSWER:
Ch01%20Describing%20Data%20Graphs%20and%20Tables.docx