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 SALESTotal EconomyHighMediumLow At Peak40141265 At Trough 597959198 Rising40161469 Falling59161893 Total198125103425

Given: Find expected frequency for each cell using the formula: Table with expected frequencies:

Answered: To see whether silicon chip sales are…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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	40	14	12	65
At Trough	59	79	59	198
Rising	40	16	14	69
Falling	59	16	18	93
Total	198	125	103	425

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