If the allowable error is given as a percent what measure of the population variation would you use to calculate sample size? Assume no calculation other than the sample size calculation.
If the allowable error is given as a percent what measure of the population variation would...
Suppose you know that a population standard deviation for a given measure is 18. For a sample of 169 subjects who have taken this measure, would would the standard error of the mean be?
2. In words, what is the standard error of the mean? Select all that apply. 1. The standard deviation of the scores in a population 2. The typical distance between scores and a population mean 3. The standard deviation of the distribution of sample means 4. The typical distance between sample means of a given size from a population mean 3. What is the relationship between sampling error and the standard error of the mean? 1. You compute the standard...
To determine an appropriate sample size to obtain from a population, what must be considered? O A. Maximum allowable error, level of confidence, standard deviation. B. Standard deviation, level of confidence, population size. OC. Level of confidence, population size, maximum allowable error OD. Population size, maximum allowable error, standard deviation.
Think of something that you might want to measure that is affected by random variation. Identify what you want to measure, then describe its (approximate) sample space. Give a rough description of the probabilities associated with those values (you can simply specify if they are all the same probability or if values in one range will be more likely than values in another range). What would you say to a person who says that he or she "knows" what the...
Use the given margin of error, confidence level, and population standard deviation, sigmaσ, to find the minimum sample size required to estimate an unknown population mean, muμ. Margin of error: 1.91.9 inches, confidence level: 9595%, sigmaσequals=2.62.6 inches A confidence level of 9595% requires a mimimum sample size of nothing. (Round up to the nearest integer.)
Assume that the population proportion is .55. Compute the standard error of the proportion, , for sample sizes of 100, 200, 500, and 1000. What can you say about the size of the standard error of the proportion as the sample size is increased?
please help with no 3,4,5 and 6 Thanks 1. What is standard error? Measure of statistical accuracy of an estimate, equal to the standard deviation of the theorental distribution of a large populanon of such estimates 2. What calculation is used to describe the variation in measurements. 3. In experiment 3.2. You will be measuring out 40ml of volume. How many times will you measure 40 ml? 4. What is the difference for each time you measure out 40ml? In...
Assume that the population proportion is 0.46. Compute the standard error of the proportion, om, for sample sizes of 500,000; 1,000,000; 5,000,000; 10,000,000; and 100,000,000. (Round your answers to five decimal places.) sample size of 500,000 sample size of 1,000,000 sample size of 5,000,000 sample size of 10,000,000 sample size of 100,000,000 What can you say about the size of the standard error of the sample proportion as the sample size is increased? The standard error of the sample proportion,...
The ages of a group of 136 randomly selected adult females have a standard deviation of 16.8 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let σ=16.8 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 95% confidence that the sample mean is within one-half...
Suppose that you are wanting to estimate the mean of a population in which the standard deviation, , is known to be 5. You take a random sample of size n=50 from the population and determine that the mean of the sample is 22.4. a. What is the standard error (of the mean) to two decimal places? b. If you wanted 94% confidence in your results, then what would be the maximum allowable error (error of the estimate), E, to...