Exhibit 11-2

question 57

Multiple Choice

Exhibit 11-2.The manager of a video library would like the variance of the waiting times of the customers not to exceed 2.30 minutes-squared.He would like to add an additional billing counter if the variance exceeds the cut-off.He checks the recent sample data.For a random sample of 24 customer waiting times,he arrives at a sample variance of 3.8 minutes-squared.The manager assumes the waiting times to be normally distributed. Refer to Exhibit 11-2.Which of the following would be null and the alternate hypothesis to test if the cut-off is surpassed?

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Definitions:

Racism

Prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one's own race is superior.

Colonies

Territories under the political and economic control of another country, often established during periods of exploration and exploitation.

North American Slave Trade

The transatlantic trade that transported African peoples to North America primarily to serve as enslaved laborers, largely ending in the early 19th century though slavery itself was not abolished until later.

Events in Africa

Refers to significant historical, political, and cultural happenings that have taken place on the African continent.