Pure-Bred Dogs Competing in Shows Must Often Meet Specific Height

question 52

Short Answer

Pure-bred dogs competing in shows must often meet specific height criteria to be considered to be within the breed standard. A new breed of dog, the pug-cock-a-poo, has been approved by a kennel club. The variance of pug-cock-a-poo height is known to be 2.25 inches squared. You would like to estimate the mean height of all pug-cock-a-poo breeds of dogs.
A) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 90% level of confidence.
B) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 95% level of confidence.

• A) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 90% level of confidence.
• B) Find the appropriate sample size to achieve a margin of error of 0.3 when maintaining a 95% level of confidence.

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Definitions:

Short-run Aggregate Supply

The total production of goods and services in an economy at various price levels in a short-term period, before all production factors can be varied.

Aggregate Demand

The complete requirement for goods and services in an economy, determined at an established overall pricing level for a specific duration.

Rising Prices

An economic condition characterized by an increase in the cost of goods and services, typically signifying inflation.

Implementation Lag

The delay between the decision to enact a policy and the time the effects of the policy are observed in the economy.