# Question

A study in the Journal of Range Management examines the relationships between elements in Russian wild rye. The correlation coefficient between magnesium and calcium was reported to be 0.69 for a sample of size 45. Is there a significant correlation between magnesium and calcium in Russian wild rye (i.e., is r = 0)? Use a = 0.05.

## Answer to relevant Questions

A study concerning the plasma concentration of the drug ranitidine was reported in the Journal of Pharmaceutical Sciences. The drug was administered (coded I), and the plasma concentration of ranitidine was followed for 12 ...Twenty-one mature flowers of a particular species were dissected, and the number of stamens and carpels present in each flower were counted a. Is there sufficient evidence to claim a linear relationship between these two ...The following equation is known to be true for any set of data: ∑(y - )2 = ∑ (y - yˆ)2 + ∑ (yˆ - )2 Verify this equation with the following data. A blind taste test was used to determine people’s preference for the taste of the “classic” cola and the “new” cola. The results were as follows: 645 preferred the new 583 preferred the old 272 had no preference Is ...Given the following data from group 1 and group 2: a. Combine the two datasets in ranked order. Compute the sum of the ranks for group 1, R1. Compute the sum of the ranks for group 2, R2. b. Compute the U score for each ...Post your question

0