When circuit boards used in the manufacture of compact disc players are tested, the percentage of...
When circuit boards used in the manufacture of compact disc
players are tested, the percentage of defectives is 10%. Let X =
the number of defective boards in a random sample of size n =
10.
a. (5 pts) What kind of distribution does X have (name and values
of all parameters)?
Homework Answers
Given that ,
When circuit boards used in the manufacture of compact disc players are tested,the percentage of defectives is 10%.
Let X = the number of defective boards in a random sample of size n = 10.
X follows binomial distribution with parameters n= 10 and p = 0.1
n = Sample size
P = Probability of defective
That is, X∼Bin(10,0.1).
Add Answer to:
When circuit boards used in the manufacture of compact disc
players are tested, the percentage of...
When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage...
When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let X = the number of defective boards in a random sample of size n = 25, so X~ Bin(25, 0.05). (Round your probabilities to three decimal places.) (a) Determine P(X ≤ 2). (b) Determine P(X ≥ 5). (c) Determine P(1≤ X≤ 4). (d) What is the probability that none of the 25 boards is defective? (e) Calculate the expected value and standard deviation of X. (Round...
tested, the long-run percentage of defectives is 5% . Let X - the number of defective...
tested, the long-run percentage of defectives is 5% . Let X - the number of defective boards in a random sample of size n 20, so X - Bin(20, 0.05), (Round your probabilities to three decimal places.) When circuit boards used in the manufacture of compact disc players (a) Detemine PXs 2). (b) Determine PX 5). (c) Determine Pr1 s xs 4). (d) what is the probability that none of the 20 boards defectiva? deviation of X, (Raund vour standerd...
In a box there are 20 light-bulbs, of which 7 are not working. We select 6...
In a box there are 20 light-bulbs, of which 7 are not working. We select 6 light-bulbs at random without replacement. What is the chance that 2 of the selected light-bulbs are not working? [Answer to 4 decimal places.] Submit Answer Tries 0/5 When circuit boards used in the manufacture of CD players are tested, the long-run percentage of defectives is 7%. A random sample of size n=23 of boards have been selected and checked. What is the expected number...
Suppose that in a batch of 500 components, 20 are defective and the rest are good....
Suppose that in a batch of 500 components, 20 are defective and the rest are good. A sample of 10 components is selected at random with replacement, and tested. Let X denote the number of defectives in the sample. a. What is the PMF of X? State the distribution, its parameters, and give the equation for its PMF with the correct parameters. b. What is the probability that the sample contains at least one defective component?
7. r in During a major disaster, for example, a humicane, wrthquake is very important to...
7. r in During a major disaster, for example, a humicane, wrthquake is very important to have tems on hand in a recent survey, only 40% of Americans had a three-day supply of b Suppose a sample of 20 Americans is selected at random. Let X be the number of day supply of bored water on hand com e g whethe household ency r Does the random variable have a binomial distribution not why not? What artthew of n and...
10. [12 pts] After manufacture, computer disks are tested for errors. Let X be the number...
10. [12 pts] After manufacture, computer disks are tested for errors. Let X be the number of errors detected on a randomly chosen disk. The following table presents values of the cumulative distribution function F(x) of X 12 34 F0.41 0.72 0.83 0.95 1 (a) Find the probability mass function (b) What is the probability that two or fewer error are detected? (c) What is the probability that exactly one error is detected? (d) How many errors would you expect...
4. (10 pts) For each of the following scenarios, determine whether the binomial distribution is an...
4. (10 pts) For each of the following scenarios, determine whether the binomial distribution is an appropriate model (distribution) for the random variable X. If yes, identify the values of the parameters n and p. A. A fair coin is flipped 10 times. Let X = the number of times the coin comes up tails. A fair coin is flipped multiple times. Let X = the number of times the coin needs to be flipped until we see 10 tails....
Can Anyone help me with these 7 questions? Questions: Q1. A random sample has been taken...
Can
Anyone help me with these 7 questions?
Questions: Q1. A random sample has been taken from a normal distribution and the following confidence intervals constructed using the same data: (38.02, 61.98) and (39.95, 60.05) (a) What is the value of the sample mean? (b) One of these intervals is a 95% CI and the other is a 90% CI. Which one is the 95% CI? Why? Q2. A civil engineer is analyzing the compressive strength of concrete. Compressive strength...
The paint used to make lines on roads must reflect enough light to be clearly visible...
The paint used to make lines on roads must reflect enough light to be clearly visible at night. Let ? denote the true average reflectometer reading for a new type of paint under consideration. A test of H0: ? = 20 versus Ha: ? > 20 will be based on a random sample of size n from a normal population distribution. What conclusion is appropriate in each of the following situations? (Round your P-values to three decimal places.) (a) n =...
Current technology uses high-resolution X-rays and lasers for inspection of solder-joint defects on printed circuit boards....
Current technology uses high-resolution X-rays and lasers for inspection of solder-joint defects on printed circuit boards. A particular manufacturers of laser-based inspection equipment claims that its product can inspect on average at least 10 solder joints per second when the joints are spaced .1 inch apart. The equipment was tested by a potential buyer on 48 different PCBs. In each case, the equipment was operated for exactly 1 second. The results of the Mini-tab analysis on the number of solder-joints...
When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let X = the number of defective boards in a random sample of size n = 25, so X~ Bin(25, 0.05). (Round your probabilities to three decimal places.) (a) Determine P(X ≤ 2). (b) Determine P(X ≥ 5). (c) Determine P(1≤ X≤ 4). (d) What is the probability that none of the 25 boards is defective? (e) Calculate the expected value and standard deviation of X. (Round...
tested, the long-run percentage of defectives is 5% . Let X - the number of defective boards in a random sample of size n 20, so X - Bin(20, 0.05), (Round your probabilities to three decimal places.) When circuit boards used in the manufacture of compact disc players (a) Detemine PXs 2). (b) Determine PX 5). (c) Determine Pr1 s xs 4). (d) what is the probability that none of the 20 boards defectiva? deviation of X, (Raund vour standerd...
In a box there are 20 light-bulbs, of which 7 are not working. We select 6 light-bulbs at random without replacement. What is the chance that 2 of the selected light-bulbs are not working? [Answer to 4 decimal places.] Submit Answer Tries 0/5 When circuit boards used in the manufacture of CD players are tested, the long-run percentage of defectives is 7%. A random sample of size n=23 of boards have been selected and checked. What is the expected number...
7. r in During a major disaster, for example, a humicane, wrthquake is very important to have tems on hand in a recent survey, only 40% of Americans had a three-day supply of b Suppose a sample of 20 Americans is selected at random. Let X be the number of day supply of bored water on hand com e g whethe household ency r Does the random variable have a binomial distribution not why not? What artthew of n and...
10. [12 pts] After manufacture, computer disks are tested for errors. Let X be the number of errors detected on a randomly chosen disk. The following table presents values of the cumulative distribution function F(x) of X 12 34 F0.41 0.72 0.83 0.95 1 (a) Find the probability mass function (b) What is the probability that two or fewer error are detected? (c) What is the probability that exactly one error is detected? (d) How many errors would you expect...
4. (10 pts) For each of the following scenarios, determine whether the binomial distribution is an appropriate model (distribution) for the random variable X. If yes, identify the values of the parameters n and p. A. A fair coin is flipped 10 times. Let X = the number of times the coin comes up tails. A fair coin is flipped multiple times. Let X = the number of times the coin needs to be flipped until we see 10 tails....
Can
Anyone help me with these 7 questions?
Questions: Q1. A random sample has been taken from a normal distribution and the following confidence intervals constructed using the same data: (38.02, 61.98) and (39.95, 60.05) (a) What is the value of the sample mean? (b) One of these intervals is a 95% CI and the other is a 90% CI. Which one is the 95% CI? Why? Q2. A civil engineer is analyzing the compressive strength of concrete. Compressive strength...
Most questions answered within 3 hours.
-
Computer Programming II CS141(Java)
Mention the appropriate relationship between following
classes:
HOD–StaffMember
Car–Ferrari
Student-Address
BankAccount–FixedAccount
House-Building...
asked 2 hours ago -
Assume one of your finals has 50 questions on it, and
lucky for you, it's all...
asked 3 hours ago -
Rice Products in Bangladesh
Business behavior is derived in large part from the basic cultural
environment...
asked 5 hours ago -
The following base sequence is found for a mRNA fragment from
wild-type E. coli: 5'- UAUCAGUAGAUAAUGUAACC-3'...
asked 5 hours ago -
For this exercise, round all regression parameters to three
decimal places.
One of the two tables...
asked 5 hours ago -
What is the 5% level of significance for mean = 3.60, standard
deviation = 0.94, and...
asked 6 hours ago -
Prior to beginning work on this discussion, please read the
article by Hayley Peterson, 15 Companies...
asked 6 hours ago -
Which pair of aqueous solutions, when mixed, will form a
precipitate?
A) NaNO3 and AgC2H3O2
B)...
asked 6 hours ago -
1-Write an algorithm to get two numbers from the user (as
inputs) and calculate the sum...
asked 10 hours ago -
Define white-collar crime. What is the difference between
offender and offense-based definitions of white-collar crime? What...
asked 10 hours ago -
Consider a reaction which is 1st order with respect to A and 1st
order with respect...
asked 10 hours ago -
c++
The length of the hypotenuse of a right-angled triangle is the
square root of the...
asked 11 hours ago