The minimum sample size needed is

Q: A rowing team consists of four rowers who weigh 152, 156, 160, and 164 pounds. Find all possible…

A: Weigh of four rowers in a rowing team is population . So the given population is :…

Q: Describe the sampling distribution of the sample proportion when large samples are drawn.

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…

Q: Sample size is larger if

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

Q: A numerical measure computed using data from the entire population set of elements is called: A)…

A: We have to find correct option for the given data ..

Q: In order to estimate the population proportion with a high school education,  you need a minimum…

A: It is given that margin of error (E) is 0.07 and the confidence level is 0.95.Here,

Q: Use the ogive to the right to approximate the sample size.

A: Given: The approximate sample is given as,

Q: Write down formula for number of possible samples of size n out of N population size in SRSWR.

A: Simple random sampling with replacement (SRSWR) represents a technique or process of sampling in…

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

A:

Q: Determine the minimum sample size required when you want to be 90​% confident that the sample mean…

A: Given Data: Margin of error=1  σ=10.4   z-score corresponding to 90% Confidence level=1.645   Let n…

Q: what is the finite population correction factor if the size of the population is 250 and the sample…

A: Given: Size of population (N) = 250 Sample size ((n) = 20

Q: The appropriate interval width for a random sample of 100 observations that fall between 50 and 250…

A: We need to use concept of class intervals and number of classes

Q: Determine the minimum sample size required to have a margin of error of 3.5% with 90% confidence.

A: Determine the minimum sample size required to have a margin of error of 3.5% with 90% confidence.

Q: identify two methods for obtaining a simple random sample

A: The two methods for obtaining a simple random sample are:Lottery method: In this method of random…

Q: What sample size should you gather to achieve a 0.7 hour margin of error?

A: here given , population standard deviation  = 4.2 hour  confidence level = 99% MOE  = 0.7

Q: identify the sampling technique used

A: 1.Here researchers are selected using the randomly selected chits of numbers assigning to them from…

Q: The total population of a study is given at 500. the required sample size is 125. Determine the…

A: Given N=500, n=125

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: Describe about the Selection of Sample Size.

A: Sample size It is difficult for researchers to examine each individual in the population. Hence, 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: What test can we use to determine the sample size needed?

A: Confidence intervals for a parameter take the following general form: Point Estimate ± Margin of…

Q: Determine the point estimate of the population proportion for the sample provided. Lower bound:…

A: sample proportion = (Upper limit+lower limit)/2 = (0.212+0.152)/2 = 0.182

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: minimum sample size needed

A: Given :  Margin of error=E=7%=0.07 Significance level=α=0.01 Prior estimate of proportion=p-hat=0.80…

Q: Describe the sampling distribution of the difference between two sample means when large samples are…

A: Sampling Distribution: The sampling distribution of the difference between Two mean shows The…

Q: The minimum sample size needed is Is this sample size practical?

A: In the table the minimum samples sizes are given for various situations.

Q: Find the minimum sample size required to estimate the proportion of the population that supports a…

A: From the given information,   Margin error = 0.042 Assume sample proportion = 0.5   The objective is…

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: How to find the minimum sample size required to estimate and unknown population mean?

A: To find the minimum sample size required to  estimate and unknown population mean,We can use Cochran…

Q: What are thw two requirements for a random sample?

A: In this case, we need to write the two requirements for the random sample.

Q: Is the sample size of survey is multiplied by 100, then by what factor is the margin of error…

A: Solution

Q: Use the finite population correction factor since the sample size is more than 5% of the population…

A:

Q: Determine the minimum sample size required when you want to be 90​% confident that the sample mean…

A:

Q: Describe the finite population correction factor for the sampling distribution for the proportion…

A: Finite population correction factor is used to adjust a variance estimate for an estimated mean, so…

Q: Give a clear chart showing the conditions, where we can apply various types of random and non-…

A: Random sampling is also known as probability sampling, is a sampling method in which the method of…

Q: It is a collection of statistical techniques that provide a systematic way to sample the design…

A: Here use basic definitions of all given term  And identifying correct option for given statement

Q: Use the ogive to the right to approximate the sample size. 券

A: Result: In frequency distributions, the largest cumulative frequency value gives the the total…

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: 4. Cluster Sampling: 5. Multi-stage sampling:

A: Sampling method is used to chose a sample from a large population to infer the information about the…

Q: What is the Optimal Sample Size?

A: To perform any survey, we always have priority to get good sampling size of the population . thanks…

Q: 2. Find the minimum sample size needed to be 90% confident that the true proportion of students who…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is,

Q: Find the minimum sample size you should use to assure that your estimate of p will be within the…

A: Given

Q: Is it really important to have a very large number of observations for work sampling? Why?

A: It is necessary to have a very large number of observations for work sampling because it is a…

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: Indicate the LEAST sample size required using the Yamane's formula. 1. Population = 500 margin of…

A: 1- Sample size= 476 2- Sample size= 300 3- Sample size= 89 4- Sample size= 200 5- Sample size= 310…

Q: How many blocks were used in this experiment?

A: Given that number of levels k = 5 We have to find number of blocks b

Q: List three types of samples and explain it.

A: The types are samples is as follows: Simple random sampling Systematic sampling Stratified sampling…

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.