Refer to the MegaStat/Excel Output for the Wilcoxon Rank Sum

question 33

Multiple Choice

Refer to the MegaStat/Excel output for the Wilcoxon rank sum test given in the table below. At a significance level of .05,which one of the following statements is correct regarding the following null hypothesis? H₀: D₁ and D₂ are identical probability distributions.

• A) We reject H₀ and conclude there is very strong evidence that the median value of the first sample significantly differs from the median value of the second sample.
• B) We reject H₀ and conclude there is very strong evidence that the median value of the first sample is significantly less than the median value of the second sample.
• C) We do not reject H₀ and conclude there is not sufficient evidence that the median value of the first sample is significantly less than the median value of the second sample.
• D) We do not reject H₀ and conclude there is insufficient evidence to conclude that the median value of the first sample is not significantly different from the median value of the second sample.
• E) We do not reject H₀ and conclude there is very strong evidence that the median value of the first sample is significantly greater than the median value of the second sample.

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Definitions:

Deferred Revenue

Income received by a company for goods or services yet to be delivered or performed, recorded as a liability on the balance sheet until the goods or services are provided.

Receipt of Cash

This refers to the actual inflow of cash into a business, resulting from transactions such as cash sales, receiving payment from debtors, or any other cash receipts.

Warranty Accrual Method

An accounting approach that recognizes the estimated cost of fulfilling product warranties as an expense when the related sales occur.

Warranty Costs

Expenses incurred by a company to repair, replace, or refund products that are found to be defective within the warranty period.