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A pharmaceutical company recieves large shipments of aspirin tablets. The acceptance of sampling plan is to randomly select and test 43 tablets, then accept the whole batch if there is only one or none that doesn’t meet the required specification. If one shipment of 3000 aspirin tablets actually have 4% rate of defects, what is the probability that this whole shipment will be accepted? Will almost all such shipments be accepted, or will many be rejected? The probability that this shipment will be accepted is _____. (Round to four decimal places as needed.)

User Bennybdbc
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Answer:

Explanation:

To find the probability that the whole shipment will be accepted, we can use the binomial probability formula:

**P(X = k) = (n choose k) * (p^k) * (q^(n-k))**

Where:

- n is the number of trials (number of tablets tested), which is 43 in this case.

- k is the number of successful trials (defects allowed), which is 0 or 1 in this case.

- p is the probability of a successful trial (probability of a tablet being defective), which is 4% or 0.04.

- q is the probability of an unsuccessful trial (probability of a tablet meeting the required specification), which is 1 - p = 0.96.

Now, we'll calculate the probability of accepting the whole shipment, which means having either 0 or 1 defective tablet out of 43 tested.

For k = 0:

**P(X = 0) = (43 choose 0) * (0.04^0) * (0.96^43)**

**P(X = 0) = 1 * 1 * (0.96^43)**

For k = 1:

**P(X = 1) = (43 choose 1) * (0.04^1) * (0.96^42)**

Now, we calculate both probabilities and sum them to find the total probability of accepting the shipment:

**P(acceptance) = P(X = 0) + P(X = 1)**

Calculate both probabilities and sum them:

**P(X = 0) = (0.96^43) ≈ 0.5834**

**P(X = 1) = (43 choose 1) * (0.04) * (0.96^42) ≈ 0.3852**

Now, find the total probability of acceptance:

**P(acceptance) ≈ 0.5834 + 0.3852 ≈ 0.9686**

So, the probability that this whole shipment will be accepted is approximately 0.9686 or 96.86%. This means that almost all such shipments will be accepted, as the probability of acceptance is quite high.

User Paul Rubel
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