Measurements are made at two different times. Find the absol…

Measurements are made at two different times. Find the absolute change and then find the percentage change. If necessary, round your answers to one decimal place.In the last election, in a certain city the percentage of eligible voters who voted in the local election was 66.2%. This year, the percentage fell to 50.2%.

A sample statistic and margin of error are given. Find the c…

A sample statistic and margin of error are given. Find the confidence interval likely to contain the population parameter of interest and answer the question.In a survey conducted in a certain city it was found that 3.2% of men and 4.1% of women were unemployed. The margin of error for each report was 0.6 percentage points. Use each sample statistic to find a confidence interval. Can we conclude that the unemployment rate is higher amongst women than amongst men?

A sample statistic and margin of error are given. Find the c…

A sample statistic and margin of error are given. Find the confidence interval likely to contain the population parameter of interest and answer the question.Ten years ago, according to government records, 17% of the population of Elmwood had no health insurance. This year a poll revealed that 19.9% were without insurance. The margin of error was 2.8 percentage points. Find a confidence interval for the true percentage without insurance this year. Can we conclude that the percentage without insurance has increased from ten years ago?