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 Peak42151370 At Trough 638463211 Rising42171574 Falling63171999 Total211133110453

Objective: To test whether the weekly silicon chip sales are independent of country's economy or…

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	42	15	13	70
At Trough	63	84	63	211
Rising	42	17	15	74
Falling	63	17	19	99
Total	211	133	110	453

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