THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 31

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
-A random sample of 100 measurements of the resistance of electronic components produced in a period of 1 week was taken.The sample skewness was 0.60 and the sample kurtosis was 3.75.Test the null hypothesis that the population distribution is normal.

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Definitions:

Functional Currency

The primary currency used by a business or entity in its financial operations and reporting.

Current Monetary Assets

Assets held by a company that are in the form of cash or can be easily converted into cash within a short period, typically one year.

Total Liabilities and Equity

The sum of all liabilities (what a company owes) plus the owners' equity (the original investment plus any retained earnings).

Exchange Rates

The rate at which one currency can be exchanged for another, affecting international trade and investments.