1. The problem asks to identify the important feature omitted in a poll summary that includes a sample size, a point estimate, and a margin of error. 2. Given data: - Sample size: 1910 professionals - Point estimate: 26% said the biggest interview turnoff is lack of effort to learn about the job/company - Margin of error: ±3 percentage points 3. Important features in poll results typically include: - Sample size: number of respondents (given as 1910) - Point estimate: the observed percentage (given as 26%) - Margin of error: the range around the point estimate (given as ±3%) - Confidence level: the probability that the true population parameter lies within the confidence interval (usually 90%, 95%, or 99%) - Confidence interval: the range calculated as point estimate ± margin of error 4. The problem states the margin of error but does not mention the confidence level, which is crucial to interpret the margin of error and confidence interval properly. 5. Therefore, the omitted important feature is the confidence level. Final answer: The confidence level