Feedback? CHALLENGE ACTIVITY 4.7.1: Confidence intervals for population means. 402216.1927122.qx3zqy7 V Jump to level 1 1 The additional growth of plants in one week are recorded for 6 plants with a 2 sample standard deviation of 1 inches and sample mean of 8 inches. t* at the 0.10 significance level = Ex: 1.234 4 Margin of error = EX: 1.234 Confidence interval =( Ex: 12.345 Ex: 12.345 [smaller value, larger value] 2 Check Next Feedback