1 The sample size must be increased by a factor of to decrease the margin of error by a factor of 2 (Type a whole number.)

Q: a coin is tossed repeatedly until a head comes up. Find sample space.

A: If a coin is tossed then we get Head (H) or Tail (T) Sample space for 1 coin tossed : {H,T} But here…

Q: Discuss the method of drawing a systematic sample of size 4 when N=24

A: Given - Pop. size = N = 24 Sample size = n = 4

Q: 3. For a given level of significance, if the sample size is increased, the power of the test will…

A: Here, when we take large sample size then z value will be increase. Then we will be reject the null…

Q: Sample size is larger if

A: Sample size is large if we can make statement for population from it.

Q: 17. The best approach for creating a stratified random sample of a population involves: A. drawing…

A: We have to select  The best approach for creating stratified random sample of a population involves…

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

A: Given information: It is given that the department of health is conducting random drug testing in a…

Q: Suppose a simple random sample of size n= 200 is obtained from a population whose size is N=20,000…

A: a) Consider that p is the population proportion and p̂ is the sample proportion, where n is size of…

Q: n. How large of a sample size is required?

A: here MOE  = 0.03 p =0.28 z critical for 95% confidence level = 1.96 s

Q: sampling

A: Here sampling is without replacement so once a element drawn then not returned

Q: 1.1 If we enlarge the sample size, the type I error, a, increases and the type II error, ß , will…

A: Note- As per our policy we can answer only 1st question. If you want solutions for other, then you…

Q: 1. Discuss the theoretical framework of simple random sampling. 2.Discuss the theoretical framework…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Of what relevance is the central limit theorem to the sampling distribution of the sample means?

A: Central Limit theorem:

Q: 2. What is the importance of getting the sample size?

A:

Q: 9. If the population proportion is 0.6. A researcher wants the margin of error to be 0.20. and level…

A:

Q: A population consists of the numbers 2, 4, 8, 10 and 5. Let us list all    the possible samples of…

A: Given : Population size (N)=5 2 4 8 10 5 Sample size (n)=3

Q: a.    If samples of a specific size are selected from a population and the means are computed, what…

A: The answer is explained below-

Q: Q. No.1: Under which situations systematic sampling is suitable sampling technique, Explain it with…

A: Since you have asked multiple question, we will solve first question for you. If you want any…

Q: What is the value of the finite population correction factor given a population consisting of 1, 2,…

A: Solution-: Given: sample size =3 Population data: 1,2,3,4,5 So, Population size=5  we find the value…

Q: Suppose that you have a group of 1,000 city government employees and you want to survey them to find…

A: Given Information: Total Population = 1000 Margin of error = 0.05 Consider the proportion = 0.5 The…

Q: 1 By how many times does the sample size have to be increased to decrease the margin of error by a…

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: How large of a sample size is required?

A:

Q: How is a cluster sample done? - This question is based on Research Methodology  A. By sampling only…

A: Solution:  B. By sampling clusters first and then individuals in that cluster. Cluster Sampling : It…

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: Give an example of computing an appropriate sample size using the length of the interval.

A: Solution : Formula for computing sample size using the length of interval is, n = Zα2σd2 where , σ =…

Q: The Department of Health is conducting random drug testing in a barangay in relation to their age.…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: A population consists of a batch of 24,649 aspirin tablets, and it includes 902 that are defective…

A:

Q: o satisfy the desired margin of error, a sample size no smaller than is needed.

A: Given that Margin of error, E = 0.03 Confidence level is 95%, then the critical value of Z is 1.96…

Q: 27. What sample size should you take to be 95% confident that the estimate of the true proportion of…

A:

Q: b) What is the minimum sample size needed to estimate the true proportion of adults who watch…

A: Given: Confidence interval =99% Level of significance, α=0.01 Standard error, e = 0.04 p = 0.5 from…

Q: 6. Calculate the sample size needed in order to estimate the true proportion of defective in a large…

A: Confidence interval are constructed by using z distribution.

Q: 1. what is the sample size of the body?

A: The association exist between the two categorical variable are calculated using chi square test. The…

Q: 1. Random sample of size 4 is drawn from the finite population which consists of the numbers…

A: 1. Random sample of size 4 is drawn from the finite population which consists of the numbers 2,3,7,8…

Q: 9. What method of sampling where all elements of the population are given equal chance of being…

A: Simple random sampling : Simple random sampling is a kind of a probability sampling in which analyst…

Q: Suppose a simple random sample of size n=125 is obtained from a population whose size is N=10,000…

A:

Q: Pregunta 12 If the probability of committing a Type I error for a given test is decreased, then for…

A: The probability of committing Type I error and Type II error are inversely proportional. That is, as…

Q: 4) For sample space from n(u,0), the variance of mean is o.

A: 4. Given that the sample space is selected from nμ,σ2.

Q: (2) If 1-in-10 systematic sample is to be chosen, what is the prob. that the first 3 families of…

A: Given information: 1 in 10 systematic sample is to be chosen.

Q: 8. If a researcher takes a large enough sample, he/she will almost always obtain: A. virtually…

A: Note: Since you have asked multiple question, we will solve the first question for you. If youwant…

Q: The population size is always considered in any scientific investigation. If the population is too…

A: Importance of sample size in research: A sample should be representative of the target population.…

Q: . Consider an experiment that records the error (difference) between the actual and estimated…

A: Given that -Consider an experiment that records the error (difference) between the actual and…

Q: A marine biologist wants to estimate the average weight of a population of dolphins living in a…

A: Note: the options for the answers are not given. So, the answer is written in assumption. In order…

Q: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

A: If samples of a fixed size N are drawn randomly and with replacement from the same population of…

Q: 1. Random sample of size 4 are drawn from the finite population which consists of the numbers…

A: Solution Part A Given , Finite population given as 2,3,7,8 and 10 i.e. N=5 size of the sample is…

Q: ٩.In a chi square goodness of fit test, a variable has 6 categories, and the sample size is 16.…

A:

Q: 4. Let X be a random variable with values 2, 3, 5, and 6. Find the sampling distribution of the mean…

A: here given population 2,3,5 and 6  here sample of size n =2 are selected

Q: 26. Consider a population consisting of 1,2,3,4 and 5. Supposed samples of size 2 are drawn from…

A: Given that Population: 1,2,3,4,5  Sample size =2 We have to find c.the mean and standard deviation…

Q: In this population data : (2, 4, 6) what is the Standard Error when a sample size of 2 is drawn.

A: Given: population data: 2, 4, 6 n =2

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.