In a recent study of enterprise resource planning(ERP) systemeffectiveness, researchers asked companies how they assessed the success of their ERP systems. Out of 400 manufacturing companiessurveyed, they found that 192 used return on investment(ROI), 160 used reductions in inventorylevels, 39 used improved dataquality, and 9 usedon-time delivery. In a survey of 170 servicefirms, 40 usedROI, 30 used inventorylevels, 70 used improved dataquality, and 30 usedon-time delivery. Is there evidence that the measures used to assess ERP system effectiveness differ between service and manufacturingfirms? Perform the appropriate test and state your conclusion.

State the null and alternative hypothesis. Choose the correct answer below.

A. H0: The method of assessment is independent of industry sector.

HA: There is an association between assessment method and industry sector.

B. H0: There is no pattern in the assessment method by industry sectors.

HA: There is a pattern in the assessment method by industry sectors.

C. H0: The proportions of assessment method are the same for each industry sector.

HA: The proportion of assessment method is different for at least one industry sector.

Determine the 2 statistic.

2= __. (Round to three decimal places asneeded.)

Find theP-value.

P-value= __. (Round to four decimal places asneeded.)

State your conclusion at the significance level =0.05. Choose the correct answer below.

A. Reject H0. There is sufficient evidence that the proportion of assessment method is different for at least one industry sector.

B. Failtoreject H0. There is insufficient evidence that there is a pattern to assessment method by industry sector.

C. Reject H0. There is sufficient evidence that there is an association between the method used to assess the ERP systems and the type of industry.

D. Failtoreject H0. There is insufficient evidence that there is an association between the method used to assess the ERP systems and the type of industry.

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