Elizabeth is the project manager for a new mobile app. She is using earned value management to control costs. Due to a schedule variance at Month 4, she took corrective action and crashed the schedule. After four months, there was no cost variance. After six months, the cost variance was -$90,000. What happened between Months 4 and 6?

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Earned Value Management EVM is a project management technique that compares the amount of work which ... View the full answer