O Menu Zy Section 7.2 - MAT 240: App X + Q X C 88 learn.zybooks.com/zybook/MAT-240-J4455-OL-TRAD-UG.22EW4/chapter/7/section/2 > > =zyBooks My library > MAT 240: Applied Statistics home > 7.2: Confidence intervals for population proportions zyBooks catalog ? Help/FAQ Confidence level | Critical value 0.90 z* = 1.645 0.95 z* = 1.960 0.99 2* = 2.576 387962.2528628.qx3zqy7 Jump to level 1 A biologist wants to know the highest likely proportion of squirrels in the area that are infected with a particular disease. A random sample of 100 squirrels was tested. Use Sheet 8 of the Excel file linked above to calculate p and the 95% confidence interval. p = Ex: 1.234 Upper bound for 95% confidence interval = Ex: 1.234 Lower bound for 95% confidence interval = The biologist can say with 95% confidence that the true population proportion of the local squirrel population that is infected with the disease is in the interval [ Ex: 1.234 , Ex: 1.234 ]. The highest likely proportion is Ex: 1.234 2 3 Check Next 3 Enter the course 4:41 PM 4/16/2022