In testing the hypotheses H:x=0.40, H :x>0.40, at 5 % level of significance, if the sample proportion is 0.45 and the sample size is 40; which one of the following statements is incorrect? OA. A one-tail is used. OB. The standard error is 0.0070 OC. The test statistic is 0.7143 OD. p-value is 0.2380

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