Pinky Bauer, Chief Financial Officer of Harrison Haulers, Inc., suspects
irregularities in the payroll system. If 10% of the 5,000 payroll vouchers
issued since January 1, 2000, have irregularities, the probability that Pinky's
random sample of 200 vouchers will have a sample proportion greater than .06 is
___________ .
怎么解决阿。我有点不懂。
其实就是说一家公司，如果10%的5000个工资证明不规范，然后从200个样本中调查，有一个样本比例大于0.06的概率是？？
我不知道如何计算啊。我用样本p＝x／样本大小。得到x＝12.然后呢？？我觉得突破口是那个标准差不知道，请问怎么办？谢谢[s:15][s:16]
