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 63 At Trough 57 76 57 191 Rising 38 15 13 67 Falling 57 15 17 90 Total 191 120 99 410
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 63 At Trough 57 76 57 191 Rising 38 15 13 67 Falling 57 15 17 90 Total 191 120 99 410
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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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 | 63 |
| At Trough | 57 | 76 | 57 | 191 |
| Rising | 38 | 15 | 13 | 67 |
| Falling | 57 | 15 | 17 | 90 |
| Total | 191 | 120 | 99 | 410 |
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