If the distribution of the population is bimodal, then the sampling distribution for the sample means for this population with sample size 50 will be unimodal. True False

Q: If the distribution of the population is bimodal, then the sampling distribution for the sample…

A: Solution :-

Q: when samples drawn from a population, which is positively distributed, with replacement and sample…

A: From the given information, Consider, X be the random variable which is positive distributed.…

Q: If the population has a variance of 4.6, what is the variance of the sampling distribution of its…

A: If the population has a variance of 4.6. We need to find the variance of the sampling distribution…

Q: the data were collected by asking the first 111 people who entered the store, then the type of…

A:

Q: Suppose that 40% of all people in a certain population have brown hair. If a random sample of 100…

A:

Q: can you please give the more appropriate answer of this question with example? A population is…

A: Introduction: The procedure or process of taking a sample from the population is is called sampling.…

Q: Compute for the variance of the sampling distribution

A: Given, Data 18 20 22 29 30 32 N = Population size = 6 n = sample size =4

Q: Describe about the Sampling Distribution of z.

A:

Q: Define the concept of sampling error and explain why this phenomenon creates a problem to be…

A:

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: What are the properties of the Sampling Distribution of x̄?

A: Properties of the sampling distribution of x̅ is If the true population distribution of a random…

Q: The central limit theorem says that the sampling distribution of the sample mean is approximately…

A:

Q: If x follows a distribution not known to be normal, then to assume that the distribution of the…

A: Solution: From the given information, the distribution of X is not known.

Q: Although, in general, you cannot know the sampling distribution of the sample mean exactly, by what…

A: Sampling distribution of a sample mean:

Q: A survey of 40 international students who are studying a postgraduate degree in Sydney reveals that…

A: Denote p as the population proportion. If x denotes the number of cases favorable to an event in a…

Q: The sampling variability of the sample means becomes smaller as the sample size n gets larger. True…

A: Here we need to determine whether the given statement is true or false.

Q: When simple random samples are drawn from a population that is normally distributed, the sampling…

A: According to the definition of Central limit theorem, the sampling distribution of the sample means…

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: In simple random sampling, it is also true that each member of the population is equally likely to…

A: Simple random sampling: Simple random sampling is a procedure of collecting samples using the…

Q: Draw all possible samples of size 2 with replacement from a population consisting of 2, 5, 6, 8, and…

A: Given We need to Draw all possible samples of size 2 with replacement from a population consisting…

Q: In order to facilitate independent random sampling what must be utilized?

A: Random sampling is the process of taking sample randomly from the population. Independent random…

Q: Assume that the population consists of only these eleven data points for y and z. Construct one…

A: It was stated to assume that the population consists of only these eleven data points for y and…

Q: As a general rule, approximately what is the smallest sample size that can be safely drawn from a…

A:

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: A researcher would like to investigate if the distribution of the number of babies born is uniform…

A: Given Information: The researcher wishes to investigate if the distribution of the number of babies…

Q: ppose that two very large companies (A and B) each select random samples of their employees. Company…

A: From above option

Q: The proportion of all adult shoppers who make a written list of the items they need before going to…

A:

Q: At a large corporation, 6,000 employees from department A and 4,000 employees from department B are…

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: how does the sampling distribution of means for a sample with N = 5 differ from that of  a sample…

A: Given: sampling distribution of means for a sample with N = 5 differs from that of a sample with N =…

Q: A population consists of the numbers 4, 6, 11, 12 and 7. List all the possible size of 3 from this…

A:

Q: For any sample of size 90, the population mean, the mean of the sampling distribution for the…

A:

Q: If the shape of the population distribution of a variable is non-normal or unknown, how large a…

A:

Q: Give one situation where each of the sampling methods is being applied. 1. Cluster Sampling 2.…

A: Sampling method involves: Prob. sampling Non-prob. sampling

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: 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: In order for our inferences from the sample to the population be valid, we must obtain samples that…

A: Here we have to check whether given statement is true or false. We know that the sample should be…

Q: If the sample size is increased, then the standard error for sample means also increases. True

A: The formula for calculating the Standard error is σ_x̄ = σ/√n

Q: What important theorem in statistics implies that, for a large sample size, the possible sample…

A: Central limit theorem for proportion: As the sample size increases, the sampling distribution of…

Q: Provide two synonyms for “the distribution of all possible sample means for samples of a given…

A: Sampling distribution of a sample mean:

Q: If a researcher uses random sampling, the sample will definitely be representative of the…

A: Solution: The given statement is “If a researcher uses random sampling, the sample will definitely…

Q: The mean of a sampling distribution is smaller than the mean of the underlying population. True or…

A: We have to find that the given statement is true or false... The mean of a sampling distribution is…

Q: What will happen to the mean of the sampling distribution of the sample means if the sample size…

A: Definition of sampling distribution: If X have any distribution and  sample size is sufficiently…

Q: When the sample size n is sufficiently large, the sampling distribution of the sample mean becomes…

A: We have to check the given statement whether it is true or not.

Q: The first unit of the sample is selected at random and then each subsequent unit is picked at a…

A: Systematic sampling - first unit is selected at random the next subsequent units selected according…

Q: As the sample size​ increases, the mean of the sampling distribution ▼   stays the same. gets…

A: We have to find correct answer from given options...

Q: If a population forms a normal shaped distribution with µ =40 and σ = 8 and a sample of 16 scores…

A: Given: X~Nμ,σμ=40σ=80n=16x¯=36

Q: In simple random sampling, it is also true that each member of the population is equally likely to…

A: Simple random sampling:Simple random sampling is a procedure of collecting samples using the methods…

Q: Draw all possible samples of size 2 without replacement from the population 2, 3, 4, 5, 6 and 7.…

A: Solution: Consider the population values 2,3,4, 5, 6 and 7.  N= 6 Population size.  To find the…

Q: If a statistic used to estimate a parameter is such that the mean of its sampling distribution is…

A: Answer: Correct option: " is unbiased". The concept of unbiased estimator, statistic, and parameter…

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.