Below You Are Given a Computer Output Based on a Sample

question 97

Essay

Below you are given a computer output based on a sample of 30 days of the price of a company's stock (Y in dollars), the Dow Jones industrial average (X₁), and the stock price of the company's major competitor (X₂ in dollars).
a.Use the output shown above and write an equation that can be used to predict the price of the stock.
b.If the Dow Jones Industrial Average is 10,000 and the price of the competitor is $50, what would you expect the price of the stock to be?
c.At $\alpha$ = 0.05, test to determine if the Dow Jones average is a significant variable.
d.At $\alpha$ = 0.05, test to determine if the stock price of the major competitor is a significant variable.

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Definitions:

Amniocentesis

A medical procedure used in prenatal diagnosis where a small amount of amniotic fluid is sampled to test for chromosomal abnormalities and fetal infections.

Chorionic Villus

Tiny, finger-like projections found on the chorion, which contribute to the formation of the placenta and facilitate nutrient and oxygen exchange between mother and fetus.

Multiple Births

The occurrence of giving birth to more than one infant during the same pregnancy, such as twins, triplets, or higher order multiples.

Amniocentesis

A medical procedure used in prenatal diagnosis to extract a small amount of amniotic fluid for testing.