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Find the confidence interval.
-A small business ships specialty homemade candies to anywhere in the world. Past
Records indicate that the weight of orders is normally distributed. Suppose a random
Sample of 16 orders is selected and each is weighed. The sample mean was found to be
110 grams with a standard deviation of 14 grams. The 90% confidence interval for the
True mean weight of orders is
Obscure
To make something difficult to see or to make unclear, either literally by blocking light or figuratively by being difficult to understand.
Chordates
A large phylum of animals that includes all vertebrates as well as two groups of invertebrates, characterized by having a notochord at some stage of their development.
Ediacaran Fauna
Ediacaran fauna is a group of animal species that existed during the Ediacaran period, just before the Cambrian. The oldest Ediacaran fossils are about 570 million years old. Ediacarans included diverse species that looked like fronds, geometrical disks, and blobs covered with tire tracks. They appear to have become extinct 540 million years ago, although some researchers argue that certain Ediacaran taxa belong to extant animal clades.
Extinction
Refers to the permanent loss of a species. It is marked by the death or failure to breed of the last individual.
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