BONUS Suppose you go to the grocery store to buy some cat li…

BONUS Suppose you go to the grocery store to buy some cat litter for you cat, since you ran out. You always get the same kind: The Purina Tidy Cats Lightweight 24/7 Performance cat litter, which is supposed to contain 17 pounds of cat litter. In reality, the amount of litter in a given container follows an approximately normal distribution with a mean of 17 pounds and a standard deviation of 0.15 pounds. What is the probability that you choose a container that has 17.2 pounds or more?

(Continued) A phycologist is interested in determining the p…

(Continued) A phycologist is interested in determining the proportion of algae samples from a local rivulet that belonged to a particular phylum. A random sample of 50 alga was obtained and each alga was categorized as either being cyanobacteria or not. It was found that 38 were, in fact, cyanobacteria. The standard error of the sample proportion, i.e.