when samples drawn from a population, which is positively distributed, with replacement and sample size n = 20 each time, the sample means’ distribution will be

Q: Suppose that in a certain large city, the mean 100 meter dash time for male high school seniors was…

A:

Q: The random variable x is known to be uniformly distributed between 0.5 and 2.5. What is the standard…

A: Given,A random variable X~U(a=0.5 , b=2.5)f(x)=12.5-0.5  f(x)=12   ;  0.5≤X≤2.5

Q: 1.) enumerate the steps for a hypothesis test for a population mean when the variance is known.

A: STEPS FOR HYPOHESIS TEST FOR A POPULATION MEAN 1) State the hypothesis i.e. Null and Alternative…

Q: Suppose the random variable x  is drawn from a  population with mean 50 and  standard deviation 3.is…

A: Solution : Given : μ = 50             σ = 3              n = 30

Q: When the sample size is increased, the spread of the sampling distribution for a sample mean (select…

A: Spread measures define how similar or varied the set of observed values for a given variable (data…

Q: Draw all possible samples of size 4 with replacement from a population 1,3,5. Construct a sampling…

A: Given information: Population 1, 3, 5 Sample size = 4 Determine the population mean and standard…

Q: If random samples, each with n = 25 scores, are selected from a normally distributed population with…

A: According to the given information, the variable of interest X follows normal distribution with mean…

Q: A sample of 25 observations is taken from an infinite population with a mean of 45 and a standard…

A: It is given that, the mean and standard deviation are 45 and 10.

Q: population has a mean equal to 80 and a standard deviation equal to 6; also, suppose that the…

A: Population has a mean equal to 80 and a standard deviation equal to 6. i.e. µ=80 and σ=6, Random…

Q: Suppose we have a random variable X distributed as a Bernoulli distribution with p = 0.5. What is…

A:

Q: A random sample of size 100 is taken from an infinite population having the mean 76 and variance…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: Suppose that we randomly select a sample of 80 measurements from an infinite population having a…

A: 1) Given: Mean μ=30 Standard deviation σ=5 Sample size n=80

Q: Draw all possible samples each of size 2 from the population 12, 6, 24, 30, 18 using sampling with…

A: Given Population size= 12, 6, 24, 30, 18  sample size=2

Q: How many different simple random samples of size 4 can be obtained from a population whose size is…

A: Population size, N=46 and n=4.

Q: Suppose that two very large companies (A and B) each seiect random samples of their employee Company…

A: given that campany A=5000

Q: A simple random sample of size n= 40 is obtained from a population with μ= 50 and σ= 4. Does the…

A: Given information- Sample size, n = 40 Population mean, μ = 50 Population standard deviation, σ = 4

Q: Suppose that the time it takes a student to complete an exam is a random variable that has normal…

A: Given, normal distribution with a mean of 75 minutes and standard deviation of 10 minutes To find:…

Q: A tank of water is leaked and has an outflow rate of 5 liters per minute which can be modeled as a…

A: # water flow from a leaked tank follow Poisson distribution with rate 5 litre/min  Then to find…

Q: doctor is interested in the proportion of patients which live at least 5 years after being diagnosed…

A:

Q: A study is done to test the claim that Company A retains its workers longer than Company B. Company…

A: The given information’s areNumber of samples in company A is 16.Mean time of company A is…

Q: a person threw 10 dice 500 times and obtained 2560 times 4,5or 6.can this be attributed to…

A: For 10 dice 500 times roll we have total 500*10=5000 dices drawn, out of which 4,5, and 6 have 50…

Q: Suppose that a random sample of size 64 is to be selected from a population with mean 30 and…

A: HERE AS PER COMPANY POLICY I HAVE CALCULATED FIRST 3 SUBPARTS ONLY HERE ALL THE PROBABILITY IS FOUND…

Q: If a population of scores is normally distributed and if samples taken from this population have a…

A: Given : If a population of scores is normally distributed and if samples taken from this population…

Q: Suppose you could take all possible samples of size n = 25 from a Normal population with mean μ = 50…

A: Given : μ = 50 , σ= 5 and n= 25

Q: Suppose the ages of Internet shoppers have a mean of 32 years and a standard deviation of 5 years.…

A:

Q: If reasonably large sized samples (i.e., samples of 30 elements or more) are drawn from a uniform…

A: Given,If reasonably large sized samples (i.e., samples of 30 elements or more) are drawn  from a…

Q: A population has a standard deviation of 16. If a sample of size 64 Is selected from this population…

A: Given Information: Standard deviation (s) = 16  Sample size (n) = 64  Sample mean - Population mean…

Q: Suppose that the birth weight of children follows a normal distribution with a mean of 3.0 kg and…

A:

Q: Suppose we have a random sample of size 36 from a Poisson distribution with mean 20. Find the…

A: From the given information, Consider, X is the random variable that follows Poisson distribution…

Q: If random samples of size n are drawn from a large population (N > 20n) with a mean u and standard…

A:

Q: 2. The IQs of 600 applicants of a certain college are approximately normally distributed with a mean…

A:

Q: Consider a discrete population with only the numbers (3,4,5) with probabilities (0.3, 0.3, 0.4).…

A: The population size is N = 3 Sample size n = 2 (with repacement). Then total possible samples = Nn =…

Q: A surprising fact is that only 56% of all teens use a password on their mobile device. If a poll…

A: It is given that the standard deviation is 1.6%.

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

A:

Q: If a researcher wants to have a distribution of a sample that is approximately normal then that…

A: solution-: If a researcher wants to have a distribution of a sample that is approximately normal…

Q: We have five data points x1=1, x2-3, x3= -1, x4-4, x5=-3 which are obtained from sampling a Gaussian…

A:

Q: If the coordinates of point A (x, y) are two random variables with a normal distribution with zero…

A:

Q: Suppose x has a distribution with a mean of 13.9 and a standard deviation of 2.1. Random samples of…

A:

Q: A surprising fact is that only 56% of all teens use a password on their mobile device. If a poll…

A:

Q: distribution

A: Mean is the sum of the observations divided by the total number of observations. It is the average…

Q: Suppose the weight of watermelons produced in Adana follows the normal distribution with mean 7.2 kg…

A: It is given that the weight of watermelons follows normal distribution with mean µ as 7.2 kg and…

Q: If X is distributed as normal with μ = 20 and σ2 = 40 and a random sample of 16 variates is drawn…

A: According to the provided information, μ = 20 σ2 = 40

Q: FILE Appendix B.4 is a table of random numbers that are uniformly distributed. Hence, each digit…

A: Q. a) Graph of population distribution of Uniform(0,9) : Population mean=(9+0)/2=4.5

Q: We draw a random sample of size 36 from a population with standard deviation 3.5. If the sample mean…

A: n = 36 s = 3.5 xbar = 27

Q: The average homicide rate for the cities and towns in a state is 10 per 100,000 population with a…

A: It is given that the homicide rate follows a normal distribution with mean 10 and standard deviation…

Q: The monthly electric bill for all Great Lakes Electric Company are known to be distributed as a…

A: Given that  The monthly electric bill for all Great Lakes Electric Company are known to be…

Q: Y¯ be the means of

A: Given:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.