Q3: Five of the light bulbs in a box of nine bulbs are burnt out or otherwise defective. Iftwo bulbs are selected at random without replacement and tested.1- If the first bulb is normal, what is the probability that the second bulb is defective?2- If the first bulb is normal, what is the probability that the second bulb is also normal?3- what is the probability that exactly one defective bulb is found?4- what is the probability that exactly two normal bulbs are found?

Answered: Q3: Five of the light bulbs in a box of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose a shipment of 140 electronic components contains 4 defective components. To determine whether the shipment should be accepted, a quality-control engineer randomly selects 4 of the components and tests them. If 1 or more of the components is defective, the shipment is rejected. What is the probability that the shipment is rejected? The probability that the shipment is rejected is (Round to four decimal places as needed.)
Q3: Five of the light bulbs in a box of nine bulbs are burnt out or otherwise defective. If two bulbs are selected at random without replacement and tested. 1- If the first bulb is normal, what is the probability that the second bulb is defective? 2- If the first bulb is normal, what is the probability that the second bulb is also normal? 3- what is the probability that exactly one defective bulb is found? 4- what is the probability that exactly two normal bulbs are found?
18 Items were randomly selected from a large inventory. If 20% of the items in the inventory are made in Asia: 1. What is the probability that exactly 5 of the 18 items selected are made in Asia? 2. What is the probability that exactly 5 of the 18 items selected are made in Asia?
Suppose a shipment of 150 electronic components contains 4 defective components. To determine whether the shipment should be accepted, a quality-control engineer randomly selects 4 of the components and tests them. If 1 or more of the components is defective, the shipment is rejected. What is the probability that the shipment is rejected? The probability that the shipment is rejected is (Round to four decimal places as needed.)
An IRS auditor randomly selects 3 tax returns fro 49 returns of which 6 contain errors. What is the probability that she selects none of those containing errors?
A batch of 50 items contains 10 defective items. Suppose 10 items are selected at random and tested. What is the probability that exactly 5 of the items tested are defective? CS Scanned with CamScanner
1./ ) A computer store has 8 monitors, 3 of which are defective. A customer randomly selects two of the 8 monitors to purchase. What is the probability all 2 are nondefective? 2. The probability the COVID vaccine immunizes those receiving it is 0.8. If a random sample of 20 people receive the vaccine, what is the probability the vaccine will be effective on at most 15 people? 18
Suppose a population consists of 10 items, four of which are classified as defective and six of which are classified as non-defective. What is the probability that a random sample of size three will contain two defective items?
Q3: Five of the light bulbs in a box of nine bulbs are burnt out or otherwise defective. If two bulbs are selected at random without replacement and tested. 1- If the first bulb is normal, what is the probability that the second bulb is defective? 2- If the first bulb is normal, what is the probability that the second bulb is also normal? 3- what is the probability that exactly one defective bulb is found? 4- what is the probability that exactly two normal bulbs are found?
Consider the hypothesis test. Ho: P1 - P2 0 The following results are for independent samples taken from the two populations. Sample 1 Sample 2 n1 = 200 n2 300 P1 = 0.24 P2 = 0.16 (a) Calculate the test statistic. (Round your answer to two decimal places.) What is the p-value? (Round your answer to four decimal places.) p-value : (b) With a = 0.05, what is your hypothesis testing conclusion? Reject Ho. There is sufficient evidence to conclude that p, - p2 > 0. Do not Reject Ho. There is sufficient evidence to conclude that p, - p, > 0. Do not reject Ho: There is insufficient evidence to conclude that p, - p, > 0. Reject Ho: There is insufficient evidence to conclude that p, - P2 > 0.
In a certain examination 7% of the candidates failed in Science, 17% failed in English and 4% failed in both Science and English. Find the probability that a candidate selected at random failed either in Science or in English or in both.
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