Profit Margin an Investor Is Considering Two Types of Investment

question 76

Essay

Profit Margin An investor is considering two types of investment. She is quite satisfied that the expected profit margin on Investment 1 is higher than the expected profit margin on Investment 2. However, she is quite concerned that the risk associated with Investment 1 is higher than that of Investment 2. To help make her decision, she randomly selects seven monthly profit margins on investment 1 and ten monthly profit margins on investment 2. She finds that the sample variances of Investments 1 and 2 are 225 and 118, respectively. {Profit Margin Narrative} Estimate with 95% confidence the ratio of the two population variances.

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Definitions:

Outliers

Observations that lie an abnormal distance from other values in a random sample from a population.

Regression

A statistical method used to determine the strength and character of the relationship between one dependent variable and one or more independent variables.

Foreign Born

Individuals who were born outside of the country in which they currently reside.

Linear Model

A statistical model used to describe the relationship between one or more explanatory variables and a continuous response variable by a linear equation.