public void setNormalizedInstanceHours(Integer normalizedInstanceHours) {
        this.normalizedInstanceHours = normalizedInstanceHours;
    }
<p>
An approximation of the cost of the cluster, represented in m1.small/hours. This value is increased one time for
every hour that an m1.small instance runs. Larger instances are weighted more heavily, so an Amazon EC2 instance
that is roughly four times more expensive would result in the normalized instance hours being increased
incrementally four times. This result is only an approximation and does not reflect the actual billing rate.
</p>

@param normalizedInstanceHours
       An approximation of the cost of the cluster, represented in m1.small/hours. This value is increased one
       time for every hour that an m1.small instance runs. Larger instances are weighted more heavily, so an
       Amazon EC2 instance that is roughly four times more expensive would result in the normalized instance
       hours being increased incrementally four times. This result is only an approximation and does not reflect
       the actual billing rate.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/JobFlowInstancesDetail.java