The discovery that 90% of those who did not respond to the survey oppose the speed limit change would fundamentally reshape our interpretation of the results. The notably high non-response rate (73%) among the 30-34 age group suggests a substantial amount of hidden opposition. If 90% of these non-respondents are indeed against the change, an additional 66% (90% of 73%) of the 30-34 age group would be counted as 'no' votes. This revelation would significantly diminish the perceived level of support for the speed limit adjustment, particularly among individuals aged 30-34. It highlights the critical impact that non-response bias can have on survey outcomes, underscoring the need for careful consideration of all demographic responses to accurately gauge public opinion on contentious issues. parphrase this and make the sriting tyle simpler