1. It is known that screws produced by a certain company will be defective with probability .01, independently of each other. The company sells the screws in packages of 10 and let X denote the number of defective screws in a package. (a) Suppose the company offers a money-back guarantee that there are no defective screws. What proportion of packages sold must the company replace? Give your answer to the tenth of a percent. (b) Suppose the company offers a money-back guarantee that there is at most one defective screw. What proportion of packages sold must the company replace? Give your answer to the tenth of a percent.

Q: Q2. Suppose that 20 percent of the bottles produced in a certain plant are defective. A defective…

A: Given that: The probability that the bottle produced is defective, PD=0.20

Q: 4. In basketball, free throws or foul shots are unopposed attempts to score points by shooting from…

A: Answer: Using the given data,

Q: 26. A company guarantees customer satisfaction on the purchase of a product, or the company will…

A:

Q: 11. The probability that a certain machine turns out a defective item is 0.05. Find the probability…

A: Given  p=0.05 n=72 X~Binomial(n=72,p=0.05) Find P(X=5)

Q: 2. An inventory study determines that, on average, demands for a particular item at a warehouse are…

A: First we need to give the equation we will use in the problem which is the Poisson distribution…

Q: 19. In testing a lethal concentration of a chemical found in polluted water, researchers have…

A:

Q: 12. You know that the probability of getting a certain rare disease is .0004. In a town of 10,000…

A: Solution: 12. From the given information, probability of getting a certain rare diseases is 0.0004…

Q: 3. A sample of 51 observations will be taken from an infinite population. The population proportion…

A: Given that Sample size n = 51 Population proportion p = 0.85

Q: Heart failure is due to either natural occurrences (84%) or outside factors (16%). Outside factors…

A:

Q: A barber shop is willing to provide a full refund for customers who are not satisfied with the…

A: Givenp=0.20n=10x~Binomial(n=10,p=0.20)P(X=x)=(nx)×px×(1-p)n-x   ; x=0,1,....,n

Q: 20. Raquel buys a bag of cookies that contains 6 chocolate chip cookies, 6 peanut butter cookies, 6…

A: Given : Raquel buys a bag of cookies that contains 6 chocolate chip cookies, 6 peanut butter…

Q: 22. A baseball team consists of 14 American-born players and 11 foreign-born players. Nine players…

A: Solution: 22. From the given information, a baseball team consists of 14 American-born players and…

Q: A company makes a profit each month with probability .7. What is the probability that it makes a…

A: From the provided information, Company makes a profit each month with probability 0.7 that is p =…

Q: A manufacturing process has a 70% yield (meaning that 70% of the products are acceptable and the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…