O Menu Course Hero X zy Section 6.2 - MAT 240: App X + Q X > =zyBooks My library > MAT 240: Applied Statistics home > 6.2: Confidence intervals for population means zyBooks catalog Help/FAQ Feedback? Challenge activities CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 387962.2528628.qx3zqy7 Jump to level 1 The additional growth of plants in one week are recorded for 11 plants with a sample standard deviation of 3 inches and sample mean of 8 inches. t* at the 0.05 significance level = Ex: 1.234 Margin of error = Ex: 1.234 Confidence interval = [ Ex: 12.345 Ex: 12.345 ] [smaller value, larger value] 2 Check Next Feedback? O W 10:50 AM 4/9/2022