The Following Data, Drawn from a Normal Population, Are the Waiting

question 35

Essay

The following data, drawn from a normal population, are the waiting times (in minutes) of 12 randomly selected customers at a travel desk.
1.8 2.4 2.7 2.1 1.3 1.7 1.5 1.5 2.3 2.8 2.5 1.9
A) Calculate the point estimates of the population variance and the population standard deviation.
B) Compute a 90% confidence intervals for the population variance and the population standard deviation.

• A) Calculate the point estimates of the population variance and the population standard deviation.
• B) Compute a 90% confidence intervals for the population variance and the population standard deviation.

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Definitions:

Osteoporosis

Osteoporosis is a bone disease characterized by decreased bone mass and density, leading to an increased risk of fractures.

Stress Fractures

Small cracks in a bone caused by repetitive force or stress, often occurring in athletes or soldiers.

Kohlberg's Preconventional

The first level of Kohlberg's theory of moral development, characterized by an individual's understanding of morality based on punishment and reward.