Which is not true about standard costs? O We should set the standard costs (e.g. for materials) so the company never pays more than that amount If we have many purchased components (e.g. 10,000 parts), we can efficiently determine which products are costing more than expected. O We can evaluate whether we paid more for a resource (e.g. labor cost per hours) or the resource was not used efficiently O We can investigate large positive and negative variances to improve our management of resources