A random sample of 78 employees at a large computer software firm was polled to determine method of travel to work. A random sample of 80 employees of an accounting firm in the same office complex was also polled. The results are shown in Exhibit 12.40 below. Is there evidence that the proportions of workers who travel to work via the different methods are different between the two firms? Use α = 5%.

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Employees' Methods of Travel to Work In Car By Transit 51 52 On Bicycle 16 On Foot Software Firm Accounting Firm 23