The sales manager of a major daily newspaper in the Quebec City area says that more than 70% of households in the region read at least one daily newspaper. A survey of 1,000 households in the Quebec City area indicates that 720 households read at least one daily newspaper. households read at least one daily newspaper. Is the business manager's claim supported by the survey results at the significance level o = 0.005? a) Since the calculated Z-value = 1.38 < the critical Z-value = 1.96, the results contradict the business manager's statement. The proportion appears to be equal to 70%. b) Since the calculated Z value = 1.38 < the critical value of Z = 2.33, the results contradict the sales manager's statement. The proportion appears to be equal to 70%.

c) Since the calculated Z value = 1.38 < the critical value of Z = 2.58, the results contradict the sales manager's statement. The proportion appears to be equal to 70%. d) Since the calculated Z value = 1.38 > the critical value of Z = 1.28, the results do not contradict the sales manager's statement. The proportion appears to be greater than 70%. e) Since the calculated value of Z = 1.38 < the critical value of Z = 1.645, the results contradict the sales manager's statement. The proportion appears to be equal to 70%.