Question

PARTD: 2 Cases (2*15=30 Marks)To see whether silicon chip sales are independent of where the economy is in the business cycle, data have beencollected on the weekly sales of Zippy Chippy, a Silicon Valley firm, and on whether the economy was rising to a cyclepeak, at a peak, falling to a cycle trough, or at a cycle trough. The results are:Weekly Chip SalesEconomy High Medium LowTotalAt Peak207330At Trough 304030100Rising208230Falling305540Total1006040200a. State the null and alternate hypothesis.b. Calculate the x2 (Chi-square) valuec. At 0.10 significance level, what is your conclusion?​

Answer 1

Answer:

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