The following data are the lengths of 16 ears (cm) collected in a study of size inheritance in a hybrid variety of corn: 18,15,14,11,18,19,16,16,17,12,15,16 ,12,15,13,17. the sample mean is 15.25 and the sample standard deviation is 2.35. assume the length of ears in the population is normally distributed. construct the lower bound for a 95% confidence interval for the mean length of ears in plants of this variety. give your answer to 3 decimal places.

When turned about its axis of rotation, which shape could have created this three-dimensional object?

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.