THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 50

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A large department store records the number of returns per day in women's dresses for reasons such as wrong size;husband didn't like it,color,etc.The manager of the women's dresses department recalls from her statistics class in college that the Poisson distribution might describe such events.A random sample of 150 days is taken.The number of returns per day in the sample as well as the observed frequencies is shown in the table below:

She tests the hypothesis that returns per day are Poisson distributed with a population mean equal to 1.90.Her significance level is 0.05
-Calculate the probability associated with each category and the expected frequencies.

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Definitions:

Interpret

The act of explaining, defining, or understanding something within a specific context, often applied to translating languages, analyzing data, or understanding behavior.

Conceptual Skills

Abilities to understand complex ideas and the interrelationships between them, allowing for effective problem-solving and strategic planning at a high level.

Long-term Plans

Strategic goals that an organization aims to achieve over an extended period, typically over several years, to ensure growth and sustainability.

Top-level Manager

Executives who are responsible for controlling and overseeing the entire organization.