Explain Distribution and standard errors when n is large?

Q: True or false, the standard deviation of a normally distributed variable can be any real number. A)…

A: From the above data  We are given that  standard deviation of a normally distributed variable can be…

Q: What is the standard error of x, -x, ? standard deviation of the sampling distribution of x, -x, a.…

A: We want tell the  Standard error of x̄1-x̄2

Q: 0.5868 0.6332 (ii) Calculate the error bound. (Round your answer to four decimal places.)

A: Error Bound is calculated using the formula: EB=Upper limit-Sample proportion=0.6332-0.61=0.0232…

Q: What kind of distribution is represented in this graph? Negative skew Bimodal Positive skew Uniform…

A: We have given the graph we have to the kind of distribution in the graph

Q: exlpain please The uniform distribution U(a, b) ; calculation of probabilities, calculation of its…

A: We will exaplain all things about uniform distribution.

Q: he time to fly between New York City and Chicago is uniformly distributed with a minimum of 135…

A: Define the Random Variable, X : time to fly between New York City and Chicago.  So,  X ~ Uniform (…

Q: From central limit theorem... true or fals

A: According to the central limit theorem, if the sample size is sufficiently large, i.e., n =30 or…

Q: What is the P (11 ≤ x ≤ 13)?

A: Given a normal distribution with mean of 12 & standard deviation of 2.

Q: The probability distribution of all sample means that can be selected from a given population is…

A: Solution-:The probability distribution of all sample means that can be selected from a given…

Q: Suppose data X1, ..., Xn are sampled from the population, sample mean is a random variable

A: It is given that Sample : x1, x2,......,xn

Q: The mean of all the sample means obtained from all random samples of a certain sample size in a…

A: Here, we have sample mean is an biased estimate of the given random sample.

Q: For normal distribution with a mean of 4 and a standard deviation of 2, the value 5 has a z value of…

A: Mean, μ = 4 Standard deviation, σ = 2 Raw score, X = 5

Q: If p = 2.4 % and n = 400, is the Poisson distribution a reasonable approximation of the binomial…

A: Solution

Q: When is your sampling distribution normal? When your data non-normal and your N50 when your data…

A: Central limit theorem Let X1,X2,X3,....,Xn be a random sample from any distribution. If n is very…

Q: Which of the following is not possible for a symmetric distribution with multiple unique values? The…

A: Which of the following is not possible for a symmetric distribution with multiple unique values?…

Q: Which one of these is a false statement about a simple random sample is drawn from a population ???

A: The sample mean is denoted by x¯. The standard deviation of the sample mean is σx¯=σn where n is the…

Q: None

A: To find the square root of the standard deviation, for a binomial distribution, we can use the…

Q: According to Chebyshev's theorem, the probability that any random variable assumes a value within 3…

A: Given that the random variable X has mean μ and variance σ2. Consider,…

Q: We can use the central limit theorem when n<30 provided the population follows a normal…

A: The central limit theorem (CLT) is a fundamental concept in statistics that states that for a large…

Q: In Excel, what type of distribution requires the individual to specify the variables of n, x, and p?…

A: The objective is to identify the distribution in Excel that assumes variables in the form of n, x,…

Q: Chi – squared distribution is a special case of gamma distribution in which 1 True False

A: if X has chi-squared distribution with k degree of freedom where k is positive integer.X has…

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.