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 conđuct the test of hypothesis at 0.01 level of significance, what is your conclusion? WEEKLY CHIP SALES Total High Medium Economy At Peak Low 27 44 At Trough Rising Falling 40 53 40 133 27 11 47 40 11 12 63 Total 133 84 69 287

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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
27
9
8
44
At Trough
40
53
40
133
Rising
27
11
47
Falling
40
11
12
63
Total
133
84
69
287
Transcribed Image 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 27 9 8 44 At Trough 40 53 40 133 Rising 27 11 47 Falling 40 11 12 63 Total 133 84 69 287
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