True or false

1.One inventory management problem is how frequently should materials be ordered.

2.Performance specification puts great responsibility on the buyer in terms of the products ability to achieve the specified performance.

3.A principle common to all types of purchasing activities is to obtain the greatest value for each dollar/birr the purchasing department spends

4.In ABC analysis what makes an item to fall under a category is its unit cost

5.An item exhibits dependent demand when it is to go into or become part of another item

6.The more highly standardizes a firm's materials requirement are and the fewer the number of standard items a firm uses and the less is the probability that materials of the right quality will be readily available at a reasonable price