In a Study of the Relationship Between Birth Order and University

question 90

Essay

In a study of the relationship between birth order and university success, an investigator found that 140 in a sample of 200 university graduates were firstborn or only children. In a sample of 120 nongraduates of comparable age and socioeconomic background, the number of firstborn or only children was 66. Estimate the difference between the proportions of firstborn or only children in the two populations from which these samples were drawn. Use a 90% confidence interval and interpret your results.

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Definitions:

Domestic Deflation

A decline in the general price level of goods and services within a domestic economy over a period of time.

Exports and Imports

Describes goods and services sold to other countries (exports) and goods and services purchased from other countries (imports).

Flexible Exchange Market

A foreign exchange system where the value of currencies are determined by market forces without direct government intervention.

Equilibrium Exchange Rate

The exchange rate at which the demand for a currency equals its supply in the foreign exchange market, resulting in a stable market price.