Q1 To see whether silicon chip sales are independent of where the XYZ country's economy is in the business cycle, data have been collected on the weekly sales of ABC firm, and on whether the economy...


Q1<br>To see whether silicon chip sales are independent of where the XYZ country's economy is in<br>the business cycle, data have been collected on the weekly sales of ABC firm, and on whether<br>the economy was rising to a cycle peak, at a cycle peak, falling to a cycle trough, or at a cycle<br>trough. The results are given in the table below. State the null and alternative hypotheses.<br>Calculate the appropriate test statistic and conduct the test of hypothesis at 0.01 level of<br>significance, what is your conclusion?<br>WEEKLY CHIP SALES<br>Total<br>Economy High Medium<br>Low<br>At Peak<br>38<br>13<br>11<br>62<br>At Trough<br>56<br>75<br>56<br>188<br>Rising<br>38<br>15<br>13<br>66<br>Falling<br>56<br>15<br>17<br>88<br>Total<br>188<br>118<br>98<br>404<br>

Extracted text: Q1 To see whether silicon chip sales are independent of where the XYZ country's economy is in the business cycle, data have been collected on the weekly sales of ABC firm, and on whether the economy was rising to a cycle peak, at a cycle peak, falling to a cycle trough, or at a cycle trough. The results are given in the table below. State the null and alternative hypotheses. Calculate the appropriate test statistic and conduct the test of hypothesis at 0.01 level of significance, what is your conclusion? WEEKLY CHIP SALES Total Economy High Medium Low At Peak 38 13 11 62 At Trough 56 75 56 188 Rising 38 15 13 66 Falling 56 15 17 88 Total 188 118 98 404

Jun 02, 2022
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