Explain about if larger the sample size, what does this reflects.

Q: The margin of error increases if the sample size increases. True False

A: Margin of error is given by, MoE= z*sigma/√n  MoE is inversely proportional to n so as we increase…

Q: what is atypical sample

A: Atypical sample means something Unusual

Q: Explain in your own words the advantages of bigger random samples in a sample survey

A: Explain in your own words the advantages of bigger random samples in a sample survey

Q: How do the Boundaries for the observed sample, Common and Rare Outcomes?

A:

Q: Explain Prerequisites of Sampling Distribution of the Mean?

A: The sampling distribution of the sample mean, X̄, based on a sample of size n, taken from a…

Q: Describe how to Convert a Sample Mean to z.

A: z-score denotes the standardized normal score.

Q: What is the difference between sample means and a distribution of sample proportions?

A: Given : Sample mean : Average of sample observations is known as "sample mean". Sample proportion :…

Q: isn't the sample size should be 35, not 12?

A: We have given that the information presented by the tutorial school related to the IELTS  mock…

Q: Does the sample size ? affect the mean of all possible sample means? Explain your answer.

A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: can you give the importance of  work sampling in health care?

A: Given problem Given that   Work Sampling : i) It is a type of sampling technique ii) It determines…

Q: What are some examples of sample statistics

A: Sample: A subpart, portion or subgroup is selected taken from the population is known as sample. It…

Q: What do you mean by Random Sample?

A:

Q: State 2 reasons why a sample survey may be preferred over conducting a census to obtain data.

A: Census: A census is a collection of information from all units in the population or a complete…

Q: the sample mean is the best estimate for population mean true or false

A: We have given that  the sample mean is the best estimate for population mean.

Q: What is the size of the sample: What is the size of the population:

A: HERE GIVEN INFORMATION ABOUT POLITICAL SCIENTIST SURVEY. SO DERIVING VALUE OF SAMPLE SIZE AND…

Q: What type of sample do we usually prefer?

A: We have given that  What type of sample do we usually prefer

Q: Explain the difference between an independent and dependent sample. Give an example of each.

A: Dependent samples:The two samples are said to be dependent if there exist an effect of one on…

Q: Describe what is meant by the acceptance sampling ?

A: Introduction - Terms used in acceptance sampling  Acceptance quality level (AQL)  Reject able…

Q: Explain in your own words: What is sampling error? What is a representative random sample?

A: we explain in the following.

Q: Describe what you see in the attached scatterplot for a sample of 20 low birth weight infants.

A: Use the Excel and Calculate the Correlation  Followings are the Steps to Calculate Correlation 1)…

Q: Explain one possible advantage of using a paired sample instead of independent samples.

A: Paired samples, are also known as dependent samples, can be defined as the samples in which natural…

Q: Explain about the Sampling Distribution of mean 1 less mean 2.

A:

Q: Understand the basic principles of sampling, including the differences between statistical and…

A: The sampling theory is based on three principles- (a) Principle of validity- According to this, the…

Q: what is meant by the term “sampling distribution” ?

A: A sampling distribution is a probability distribution of a statistic obtained from a larger number…

Q: Distinguish briefly the Population and sample

A: Population : The population is a wider group of people, items, events, etc on the basis of which…

Q: What is the population and sample of this study?

A: We want to know population and sample in given example.

Q: List three reasons why samples are used in statistics

A: Solution: Population is the entire set of units under study. Sample is the subset of population.

Q: Explain the concept of Missing Data and Sample Selection?

A:

Q: Descriptive statistics is another way of drawing a conclusion which helps us determine whether the…

A: Descriptive statistics: Descriptive statistics is a part of statistics where the data is summarize…

Q: Explain the EFFECT OF SAMPLE SIZE.

A: The size of our sample defines how much information we have and thus, in part, decides our precision…

Q: How do the sample mean and the population mean differ? What is the symbol for each type of mean?

A: Here we have to define  How do the sample mean and the population mean differ? and  What is the…

Q: Briefly explain how theory development might impact the selection of a sample.

A: Find: The theory development might impact the selection of a sample.

Q: Why doesn't it make sense to test the hypothesis that the sample mean is 42?

A: It is given that the hypothesis test is sample mean is 42.

Q: Why a casual or haphazard sample doesn’t qualify as a random sample?

A: Haphazard or casual sampling is where we try to create a random sample by haphazardly or casually…

Q: Describe the EFFECT OF SAMPLE SIZE.

A: In general, large sample size is required to get more precision of data. Sample size plays important…

Q: What is mean of the Sampling Distribution of the Mean?

A:

Q: What is the Importance of Equal Sample Sizes?

A: The t-test and ANOVA assume that the sample sizes are equal. There is an importance that the two…

Q: Does the sample size n affect the mean of all possible sample means? Explain your answer.

A:

Q: Someone claims that, since the mean of the sampling distribution equals the population mean, any…

A:

Q: 3. In your own words, thoroughly explain how a sampling distribution of a sample can be constructed

A: Sampling Distribution: Sampling distribution describes the manner in which a statistic or a function…

Q: What is Sample Mean?

A: A statistical population is a set of entities from which statistical inferences are to be drawn,…

Q: find sample variance of data   45,85,63,21,54,25,85,65

A:

Q: What is the population of interest? What is the sample?

A: 41. The study is conducted to determine the number of hours of sleep full-time college students at…

Q: aragraph with 10 sentence telling, What is the importance of getting the sample

A: In order to know the characteristics or conduct any research on entire population, a proportion of…

Q: what happens to the mean as the sample size increases?

A: It is given that the sample size is increasing.

Q: What does the SEM value tell us about the magnitude of sampling error?

A: Introduction: Suppose a random sample of size n is taken from a population with mean μ and standard…

Q: Define Sample?

A: Sample is defined as small set of data that is chosen from large population by using predefined…

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.