What will happen to the sample size if the percentage error becomes lower? Can you explain to me how the sample will best represent the population?

Q: if other factors are held constant, as a sample size decreases, the estimated standard error?_____

A: Different types of standard errors are described below.

Q: The difference between the mean of the sampling distribution of a statistic and the true parameter…

A: We have given that, The difference between the mean of the sampling distribution of a statistic and…

Q: What is the standard error for the estimate of the difference in proportions in the male and female…

A:

Q: How much difference is there between the mean for the treated sample and the mean for the original…

A: Definition Sample Mean x It is the mean of all the values of a sample.   Population μ It is the mean…

Q: What statistical tool is appropriate if the number of data is large and O is known?

A: Here we need to find out the statistical tool if the number of data is large and standard deviation…

Q: Consider the Sample mean, Xn. estimator of population as an

A: From the given information, Sample mean, X¯n is an estimator of population mean, μ. From the central…

Q: We need first to determine the degrees of freedom before we could calculate the sample mean True…

A: The sample mean is defined as Mean = Sum of sample observations/Sample size

Q: When a sample size from the population is n=1 than the standard error will always equal the

A: Given, Sample size from the population is n = 1

Q: What kind of test is used to solve the test statistic value for the population proportion?

A: We want to tell you what kind of statistic and test are used for population proportion.

Q: When we estimate to the population from sample data (as we do with inferential statistics), why are…

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: Since the sample size is always smaller than the size of the population, the sample mean O A. can be…

A: Correct answer is (A)

Q: What is the sampling distribution in estimating the variance of a population? What are the…

A: The estimation population variance of the sampling distribution, or

Q: As the sample size increases, does the mean of the sampling distribution of sample mean increase?

A: According to law of large numbers, as sample size increases, the mean of sampling distribution is…

Q: How does a small sample size increase the effect of an outlier on the mean in a skewed distribution?…

A: A skewed distribution mean one tail is longer than the other.

Q: If we would like to decrease the margin of error without changing the sample size, what must happen?

A: We have to find what to do to decrease margin of error.

Q: Explain how you can select a systematic sample of size 7 from a population of size60

A: Determine the procedure for selecting the systematic sample of size 7 from a population of size 60..…

Q: State one possible advantage of using paired samples instead of independent samples.

A: Provide the possible advantage of using paired samples instead of using independent…

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

A:

Q: If the sample size is increased, the margin of error will decrease.   True or False

A: Given statement : " If the sample size is increased, the margin of error will decrease "

Q: Explain why the formulas for sample variance and population variance are different.

A: Here's the explanation is as follows; Sample Variance : It is used to calculate how varied a sample…

Q: True or False? A smaller sample might provide less sampling error than a larger sample from a given…

A: The sampling method is used to infer the population characteristics that include sampling error. A…

Q: In a paired samples t test, explain the logic of difference scores (why do you need to find them to…

A: PAIRED T-TEST: The paired t test is also defined as dependent- t test.  This test is used to test…

Q: The sampling distribution of the mean will have the same mean as the original population from which…

A:

Q: What is the importance of getting a sample from a population? When and why is it necessary?

A: The population is defined as a large group in which the units involved have the same…

Q: does this mean that the answer saying "The sample statistic equation is correct to use when the data…

A: Yes you are correct. The sample is the the subset of the population.

Q: It is known that the population variance equals 522. What is the sample size that needs to be taken…

A: It is given that:

Q: When a sampling technique introduces a considerable amount of bias, increasing the sample size will…

A: Given:- In a sampling technique, a considerable amount of bias is introduced.  Increasing the sample…

Q: I am lookin for the relationship between the sample mean and the population mean and also the…

A: An estimate mus be having few properties in the sense of best estimate.Unbiasdness is one the…

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: 7. Shows how close the point estimator to the value of the parameter as the sample size increases.

A: Consistency Shows how close the point estimator to the value of the parameter as the sample size…

Q: Suppose you know the population mean and are interested in seeing how a sample average compares to…

A: The sampling  distribution for n=35 will have Smaller Standard Deviation because S.D of sampling…

Q: What effect does increasing the sample size have on the population standard deviation? I know that…

A: The increase in the size of the sample, decreases the population standard deviation. This happens…

Q: What is the best point estimate for the population's variance if the sample variance is 41?

A: Given,sample variance(s2)=41

Q: What are the practical Reasons for learning how to use the formula in determining sample size?

A: The two major factors affecting the power of a study are the sample size and the effect size A…

Q: In a paired samples t test, explain the logic of difference scores (why do you need to find them to…

A: Paired t test:The paired t test is also defined as dependent- t test. It is used to test the mean…

Q: Obtain the standard error of difference of sample proportions.

A: ANSWER: For the given data,

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

A:

Q: You can reduce the risk of a Type I error by using a larger sample. True or False?

A: Type-I error: Type I error is rejecting the null hypothesis when the null hypothesis is actually…

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: Show the impact of sample size on power?

A:

Q: What is the relationship between the sampling variance of an OLS parameter estimate, and the total…

A: Sampling variance is the variance of the sampling distribution for a random variable. It measures…

Q: Too many outliers on our sample data is acceptable as long as data are summarized and presented by…

A:

Q: True or False? The size of the sampling error that comes from a random sample depends on both the…

A: We know, the standard error is given as Standard Error=Standard Deviationn

Q: When comparing test scores of two groups, a difference of one point would never be highly…

A: In testing of hypothesis, the sample size doesn’t influence the result of the test.