Use A $\chi ^ { 2 }$ Test to Test the Claim That in the Given Contingency

question 15

Essay

Use a $\chi ^ { 2 }$ test to test the claim that in the given contingency table, the row variable and the column variable are independent. 160 students who were majoring in either math or English were asked a test question, and the researcher recorded whether they answered the question correctly. The sample results are given below. At the $0.10$ significance level, test the claim that response and major are independent.
$\begin{array}{r|cc} & \text { Correct } & \text { Incorrect } \\\hline \text { Math } & 27 & 53 \\\text { English } & 43 & 37\end{array}$

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Definitions:

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A type of credit that does not have a fixed number of payments, in contrast to installment credit. Credit cards are a common form of revolving credit.

Informal Line of Credit

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Inventory holding period measures the average time a company holds inventory before selling it, reflecting the efficiency of inventory management and its impact on cash flow.

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The average length of time between a firm’s purchase of materials and labor and the payment of cash for them. It is calculated by dividing accounts payable by credit purchases per day (cost of goods sold/365).