# Question

Suppose Comdell Computer receives its hard drives from Diskco. On average, 4% of all hard disk drives received by Comdell are defective.

a. Comdell has adopted the following policy. It samples 50 hard drives in each shipment and accepts the shipment if all hard drives in the sample are non-defective. What fraction of shipments will Comdell accept?

b. Suppose instead that the shipment is accepted if at most one hard drive in the sample is defective. What fraction of shipments will Comdell accept?

c. What is the probability that a sample of size 50 will contain at least 10 defectives?

a. Comdell has adopted the following policy. It samples 50 hard drives in each shipment and accepts the shipment if all hard drives in the sample are non-defective. What fraction of shipments will Comdell accept?

b. Suppose instead that the shipment is accepted if at most one hard drive in the sample is defective. What fraction of shipments will Comdell accept?

c. What is the probability that a sample of size 50 will contain at least 10 defectives?

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