This quiz: 10 pointts) possmle 8:33 This question: 1 pointi'sJ possible E Quiz: Ch 10 Quiz: One Sample Hypothesis Test Question 3 of 10 Calcium is essential to tree growth because it promotes the formation of wood and maintains cell walls In 1990, the concentration of calcium in precipitation in a certain area was [115 milligrams per liter (mgfL). Arandom sample of ti] precipitation dates in 200? results in the following data table. Complete pads (a) through (c) below. 5 Click the icon to View the data table. Data table [a] State the hypotheses for determining if the mean concentration of calcium precipitation has changed since 1990. H0. v vo_15mgrL H': V V [1.15 mga'L [b] Construct a 95% condence interval about the sample mean concentration of calcium precipitation. The ower bound is The upper bound is (Round to four decima places as needed.) [c] Does the sample evidence suggest that calcium concentrations have changed since 1990? O A: No. because the condence interval does not contain 0.15 mgi'L. O B. Yes, because the condence interval does not contain 0.15 mgfL. O C: Yes. because the condence interval contains 0.15 mgtL. O D. No, because the condence interval contains 0 15 mglL