An economist at the Florida Department of Labor and Employment needs to estimate the unemployment rate in St. Lucie county. The economist found that 2.9% of a random sample of 356 county residents were unemployed. Find three different confidence intervals for the true proportion of St. Lucie county residents who are unemployed . Calculate one confidence interval with a 90% confidence level, one with a 95% confidence level, and one with a 96% confidence level. Notice how the confidence level affects the margin of error and the width of the interval . Report confidence interval solutions using interval notation . Express solutions in percent form , rounded to two decimal places , if necessary . The margin of error for a 90% confidence interval is given by E A 90% confidence interval is given by The margin of error for a 95% confidence interval is given by A 95% confidence interval is given by The margin of error for a 96confidence interval is given by A 96% confidence interval is given by
An economist at the Florida Department of Labor and Employment needs to estimate the unemployment rate in St. Lucie county. The economist found that 2.9% of a random sample of 356 county residents were unemployed. Find three different confidence intervals for the true proportion of St. Lucie county residents who are unemployed . Calculate one confidence interval with a 90% confidence level, one with a 95% confidence level, and one with a 96% confidence level. Notice how the confidence level affects the margin of error and the width of the interval . Report confidence interval solutions using interval notation . Express solutions in percent form , rounded to two decimal places , if necessary . The margin of error for a 90% confidence interval is given by E A 90% confidence interval is given by The margin of error for a 95% confidence interval is given by A 95% confidence interval is given by The margin of error for a 96confidence interval is given by A 96% confidence interval is given by
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