In the Past, of All the Students Enrolled in Basic

question 3

Short Answer

In the past, of all the students enrolled in Basic Business Statistics, 10 percent earned an A, 20 percent earned a B, 30 percent earned a C, 20 percent earned a D, and the remainder failed the course. Dr. Johnson is a new professor teaching Basic Business Statistics for the first time this semester. At the conclusion of the semester, of his 60 students, 10 had earned an A, 20 a B, 20 a C, 5 a D, and 5 received an F. Assume that the class constitutes a random sample. Dr. Johnson wants to know if there is sufficient evidence to conclude that the grade distribution of his class is different from the historical grade distribution. If we assume at α = .05 and that the null hypothesis is rejected, make a one-sentence managerial conclusion.

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Definitions:

Fixed Exchange-rate System

A currency value regime where a country's currency is pegged at a set value to another currency, a basket of currencies, or a commodity like gold.

Foreign Exchange Market

A global decentralized or over-the-counter market for trading currencies, facilitating international trade and investment.

Peg

Fixing the exchange rate of a currency by linking it to another currency or basket of currencies.

Fixed Exchange Rates

A currency system where the value of a country's currency is pegged to another currency, a basket of currencies, or a commodity like gold, minimizing fluctuations in exchange rates.