The graph shows data for physicians who, in 2000 and 2008, were surveyed about the average number of times per...

Owning the Dataset

Table 1: Text Analysis

Table 2: Chart Analysis

Key Insights

1. Median monthly telephone use among doctors declined: in 2000 over half used telephones more than once per month, but by 2008 this dropped below once per month.
2. Email saw strong adoption: heavy (4+ times/month) usage climbed fivefold from 2% to 10%, and non-users fell from 72% to 60%.
3. Video conferencing stayed extremely rare: over 90% of physicians never used it, both years.
4. The minimum proportion of doctors using more than one method rose as nonusers of email and video both decreased, indicating overall greater communication overlap and diversification.

Step-by-Step Solution

Question 1: Median Communication Frequency Decline

Complete Statement:

It must be the case that the median number of times per month respondents reported having communicated with patients by [BLANK 1] in the 2008 survey was less than that in the 2000 survey.

Breaking Down the Statement

• Statement Breakdown 1:
  • Key Phrase: median number of times per month
    - Meaning: The value that splits all respondents into two equal groups based on how often they use a communication method.
    - Relation to Chart: Look for where the cumulative percentage of respondents using a method first exceeds 50% in each year.
    - Important Implications: Changes in the position of the median indicate changes in communication frequency for a given method.

• Statement Breakdown 2:
  • Key Phrase: was less than that in the 2000 survey
    - Meaning: The typical (middle) respondent used the method less frequently in 2008 than in 2000.
    - Relation to Chart: The category containing the median shifted lower on the frequency scale from 2000 to 2008.
    - Important Implications: We should find a method with a clear median drop between the two years.

• What is needed: Which communication method had its median usage shift to a lower frequency category in 2008 compared to 2000.

Solution:

• Condensed Solution Implementation:
  Find the category that contains the 50th percentile (median) for each method in each year, by adding percentages from lowest upward to exceed 50%.
• Necessary Data points:
  Telephone: In 2000, 17% (\(\mathrm{n=0}\)) + 21% (\(\mathrm{0\lt n≤1}\)) = 38%, so median is in the \(\mathrm{1\lt n≤4}\) category (since 38% < 50%). In 2008, 20% (\(\mathrm{n=0}\)) + 42% (\(\mathrm{0\lt n≤1}\)) = 62%, so median is in \(\mathrm{0\lt n≤1}\).
  • Calculations Estimations:
    For telephone: median frequency moved from \(\mathrm{1\lt n≤4}\) (2000) down to \(\mathrm{0\lt n≤1}\) (2008). For email and video conferencing, both have medians at 0 in both years (majority never use).
  • Comparison to Answer Choices:
    Only telephone's median usage shifted down; email and video remained at 0.

FINAL ANSWER Blank 1: telephone

Question 2: Communication Method Overlap Percentage

Complete Statement:

It must be the case that the percentage of respondents who reported having communicated with patients by both [BLANK 2] was as great or greater in the 2008 survey as it was in the 2000 survey.

Breaking Down the Statement

• Statement Breakdown 1:
  • Key Phrase: communicated with patients by both
    - Meaning: Respondents who used both methods, not just one or the other.
    - Relation to Chart: Can be inferred by calculating minimum possible overlap from the percentages for each method.

• Statement Breakdown 2:
  • Key Phrase: was as great or greater in the 2008 survey
    - Meaning: The combined-usage percentage stayed the same or increased from 2000 to 2008.
    - Relation to Chart: Calculate minimum possible overlap for each year to compare.

• What is needed: Which pair of communication methods showed at least as much, or more, overlap (joint use) among respondents in 2008 as in 2000.

Solution:

• Condensed Solution Implementation:
  Calculate the minimum possible overlap as (percent using A) + (percent using B) - 100%, or 0% if the sum is 100% or less.
• Necessary Data points:
  Telephone: 83% (2000), 80% (2008); Email: 28% (2000), 40% (2008); Video: 4% (2000), 10% (2008).
  • Calculations Estimations:
    Telephone & Email: 2000: 83% + 28% = 111%, overlap minimum 11%. 2008: 80% + 40% = 120%, overlap minimum 20%. Telephone & Video: 2000: 83% + 4% = 87%, overlap = 0%. 2008: 80% + 10% = 90%, overlap = 0%. Email & Video: 2000: 28% + 4% = 32%, overlap = 0%. 2008: 40% + 10% = 50%, overlap = 0%.
  • Comparison to Answer Choices:
    Only telephone and email show an increase in minimum overlap from 11% to 20%.

FINAL ANSWER Blank 2: telephone and email

Summary

To answer these questions, we used the cumulative percentage approach to find shifts in median frequency for each communication method and applied the inclusion-exclusion principle to estimate the smallest possible overlap in combined usage. Only telephone had a drop in median usage, while only the telephone and email pair showed a clear increase in minimum overlap.

Question Independence Analysis

The two blanks address unrelated aspects: the first asks about median frequency shifts for single communication methods, while the second asks about overlap between pairs. Each can be solved without reference to the other.