The Manager of a Video Library Would Like the Variance

question 39

Multiple Choice

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.Which of the following would be null and the alternate hypothesis to test if the cut-off is surpassed?

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Public Good

A commodity or service that is provided without profit to all members of a society, either by the government or a private individual or organization.

Individual Rights

Rights guaranteed to individuals, typically regarding personal freedom, fairness, and protection from government overreach, often outlined in a country's constitution.

Progressive Movement

A social and political movement in the early 20th century that sought to address the problems caused by industrialization, urbanization, immigration, and political corruption.

Individual Rights

Fundamental entitlements and freedoms that individuals inherently possess, protected by law, against infringements by governments or other entities.