Below, n is the sample size, p is the population proportion, and p is the sample proportion. First, check if the assumptions are satisfied to use the normal distribution for probabilities. If appropriate, use the Central Limit Theorem to find the indicated probability. n=100 p=0.23 =P<0.20
Q: An experiment consists of tossing a coin 10,000 times. Let X be the number of tails. Find P(X <…
A: Given Data: n=10000 p=0.5 Using binomial to normal approximation X~ Normal (10000*0.5,…
Q: Assume that the amounts of weight that male college students gain during their freshman year are…
A: Given : Let X : Amount of weight that male college students gain during their freshman X~N(μ=1.4 ,…
Q: standard normal distribution, find the probability of Z>1.28.
A: If µ=0, σ2= then normal variable is called as standard normal variable, denoted by Z.
Q: Determine if the finite correction factor should be used. If so, use it in your calculations when…
A:
Q: For a standardized normal distribution, calculate the probabilities below. a. P(z0.80) c.…
A: a. The value of Pz<1.5 is, Pz<1.5 The probability of z less than 1.5 can be obtained using the…
Q: The owner of a local movie theater keeps track of the number of tickets sold in each purchase and…
A:
Q: An experiment consists of tossing a coin 1,000 times. Let X be the number of tails. Find P(X < 486).…
A: n = 1000 p = 0.5 The expected value is u = np u = 1000 x 0.5 = 500 The standard deviation is…
Q: Below, n is the sample size, p is the population proportion, and p is the sample proportion. First,…
A:
Q: Determine whether the normal sampling distribution can be used. The claim is p<0.85 and the sample…
A: Givenclaim isp<0.85sample size(n)=30
Q: The average income in a certain region in 2013 was $67,000 per person per year. Suppose the…
A: Answer:- Given information, Mean, μ = 67000 Standard deviation, σ = 31000 Sample size, n = 100…
Q: A sociologist surveyed the households in a small town. The random variable X represents the number…
A: a) In general, the total probability of the probability distribution is always equal to 1.
Q: The population mean and standard deviation are given below. Find the indicated probability and…
A:
Q: The length of human pregnancies is approximately normally distributed with mean 266 days and…
A:
Q: Let be the number of TV owned by a randomly selected household with annual income between $55,000…
A: XP(x)x*P(x)X2*P(x)00.0010.0000.00010.2200.2200.22020.3390.6781.35630.2790.8372.51140.150.6002.40050.…
Q: Given that z is a standard normal random distribution, find z for each situation The area to the…
A: The area to the right of z is 0.1314 is obtained below:From the given information, the probability…
Q: Find the indicated probability using the standard normal distribution. P(z>-0.945)
A: The objective of this question is to find the probability that a value from a standard normal…
Q: Find the indicated probability using the standard normal distribution. P(z< - 0.44)
A: We've to check the probability at -0.4 on vertical line and 0.04 on horizontal line in standard…
Q: Below, n is the sample size, p is the population proportion, and p is the sample proportion. First,…
A: Givenn=111p=0.58q=1-p=1-0.58q=0.42np=111×0.58=64.38 > 5nq=111×0.42=46.62 > 5
Q: In this question, calculate the probability using Rguroo, then choose "Graph" to see the graph of…
A: Given : mean = 11.5 Standard deviation = 2.7
Q: If z is a standard normal variable, find the probability: P(-0.73 < z < 2.27) Remember to use…
A:
Q: help please answer in text form with proper workings and explanation for each and every part and…
A: Detailed explanation:Description and Background Volcanic Activities and Molten Rock In the event…
Q: Use the probability distribution to complete parts (a) and (b) below. The number of defects…
A:
Q: Find the probability using the normal table (opens in new window). P(p ≥ 0.13) = P(z ≥ 1.5) = (Click…
A: The z-score is 1.5
Q: The price of gas is normally distributed with mean $3.48 and standard deviation $0.90. What is the…
A:
Q: Determine whether the statement is true or false. If it is false, rewrite it as a true statement. f…
A: It is given that the statement about to the z-score is use when sample size is at least 30.
Q: The number of needed repairs while under warranty for a Sure Cut lawnmower has a population…
A: Sampling distribution is a probability distribution of statistics obtained from the number of larger…
Q: Find the indicated probability using the standard normal distribution. P(z2.68)
A: We have given P( <-2.68) Or Z>2.68)
Q: n is the sample size, p is the population proportion. if appropriate, use the central limit theorem…
A: Computation of p(Phat<0.11):It is given that n = 147; p = 0.13.Checking conditions:n×p = 147×0.13…
Q: Find the indicated probability. Let X be the number showing on a fair six-sided die. The…
A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…
Q: a. Calculate the probability that the average number of minutes that diners spend at their table for…
A: Let X denote number of minutes that drivers spend at their table for dinner. Given that X follows…
Q: Using the Poisson distribution table, determine the probability when: μ = 0.8, if x= 2 μ = 5.0, if…
A: The question is about Poisson distribution.Introduction :Let, X be a discrete random variable with…
Q: The sample size n, probability of success p, and probability of failure q are given for a binomial…
A: According to the given information, we have The sample size n, probability of success p, and…
Q: A normal distribution has a mean of u = 90 with o = 15. Find the following %3D %3D probabilities: a.…
A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…
Below, n is the
|

Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images

- The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 65, find the probability of a sample mean being greater than 230 if mean = 229 and standard deviation = 5.7.Below, n is the sample size, p is the population proportion, and p is the sample proportion. First, check if the assumptions are satisfied to use the normal distribution for probabilities. If appropriate, use the Central Limit Theorem to find the indicated probability. n =101 p=0.28 Part 1 of 2 It (Choose one) ▼|appropriate to use the normal distribution for probabilities. is not Part 2 of 2 P(0.26 < p <0.30) =OFind the probability P(-0.77 < = < -0.16) using the standard normal distribution.
- Why is only one normal distribution table needed to find any probability under the normal curve? Choose the correct answer below. A. Any variable value can be transformed to a Z value. B. The normal distribution is discrete. C. Normal distribution tables record every single possible normal probability. D. The normal distribution is rectangular.Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 0 1 2 3 Probability 0.269 0.295 0.241 0.144 4 0.038 5 0.013 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is. (Round to one decimal place as needed.)Use the tabulated cumulative normal distribution (Table A.2 or the inside cover of Navidi) to find the missing value in the probability distribution plots shown below. The numbers below the curve are the relevant values of X, and the numbers above the curve represent the shaded area. a. b. 1 0.4 0.3 0.2 0.1- 00 0.4 0.3 0.2 0.1- 0.0 04 0.3 0.2 0.1- 0.0 ??? Distribution Plot Normal, Mean=0, StDev=1 -1.175 0 X Distribution Plot Normal, Mean=0, StDev=1 0 X Distribution Plot Normal, Mean=0, StDev=1 0 ??? 1 ??? 0.025
- A normal distribution an be used to approximate the binomial distribution. Find the indicated probabilities using the information below. A survey of adults in a region found that 66% have encountered fraudulent charges on their credit card. You randomly select 100 adults in the region. Find the probability that the number who have encountered fraudulent charges on their credit card is at least 70. Round to four decimal places as needed.Find the indicated probability using the standard normal distribution. P(z< 0.68)The average income tax refund for the 2017 tax year was $1997. Assume the refund per person follows the normal probability distribution with a standard deviation of $943. Use this model to answer the following questions. Don’t use Excel formulas – use the tables. Show the standardization and other calculations. a) For a randomly selected return, what the is probability that the refund exceeds $2500 ? b) For a randomly selected return, what the is probability that the refund is between $2000 and $3000? c) What is the 3rd quartile of the refund amount? d) The 20th percentile?
- Construct a Binomial probability distrubtion table using n=5n=5 and p=0.27p=0.27. Next, record the mean and standard deviation of the distribution below. Where necessary, round all numbers to four decimal places.Below, n is the sample size, p is the population proportion, and p is the sample proportion. First, check if the assumptions are satisfied to use the normal distribution for probabilities. If appropriate, use the Central Limit Theorem to find the indicated probability. n = 100 p = 0.22 Part 1 of 2 It is Part 2 of 2 appropriate to use the normal distribution for probabilities. P(0.20Below, n is the sample size, p is the population proportion, and p is the sample proportion. First, check if the assumptions are satisfied to use the normal distribution for probabilities. If appropriate, use the Central Limit Theorem to find the indicated probability. n=147 p=0.18 Part 1 of 2 It is appropriate to use the normal distribution for probabilities. Part 2 of 2 P(0.15SEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. FreemanMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th…StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C…StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage LearningElementary Statistics: Picturing the World (7th E…StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman