The Following Data Represent the Scores of 50 Students on a Statistics

question 131

Essay

The following data represent the scores of 50 students on a statistics exam. The mean score is 80.02, and the standard deviation is 11.9. $$\begin{array} { l l l l l l l l l l } 39 & 51 & 59 & 63 & 66 & 68 & 68 & 69 & 70 & 71 \\71 & 71 & 73 & 74 & 76 & 76 & 76 & 77 & 78 & 79 \\79 & 79 & 79 & 80 & 80 & 82 & 83 & 83 & 83 & 85 \\85 & 86 & 86 & 88 & 88 & 88 & 88 & 89 & 89 & 89 \\90 & 90 & 91 & 91 & 92 & 95 & 96 & 97 & 97 & 98\end{array}$$ Use the z-score method to identify potential outliers among the scores.

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Definitions:

Financing Activity

Transactions that result in changes to the size and composition of the equity capital or borrowings of a company, as reported in the cash flow statement.

Financing Activities

Transactions and events that involve changes in the size and composition of the equity and borrowings of a company.

Cash Inflow

The total amount of money being transferred into a business, typically from operations, investments, or financing.

Bonds Payable

Long-term liabilities represented by bonds that a company is obligated to repay at a future date.