You wish to estimate, with 90% confidence, the proportion of camcorders that need repairs or have problems by the time the product is five years old. Youestimate must be accurate within +4% of the true population.a. Find the minimum sample size if no preliminary estimate is provided.Minimum sample is type your answer...b. Find a minimum sample size if a prior study shows that p-hat is 0.33.Minimum sample is type your answer....PreviousJE3Jed$C4%5rJUftgAVDOL6OllbDELLyh&nUj8Oim9k0V.O1alt4P...ctrl{Next+?111ba

given data, CI=0.90E=±4 % =0.04we have to find out the sample size for part a and b

Answered: You wish to estimate, with 90%…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Part C. Compute the sample mean and sample deviation.
Determine whether the statement is true or false. If it is false, rewrite it as a true statement. A sampling distribution of a sample mean is normal only if the population is normal. Choose the correct answer below. O A. The statement is false. A sampling distribution of a sample mean is approximately normal if either n ≥ 30 or the population is normal. B. The statement is false. A sampling distribution of a sample mean is never normal. O C. The statement is false. A sampling distribution of a sample mean is approximately normal only if n ≥ 30. OD. The statement is true.
When the distance from the smallest observation to the 1st quartile is much greater than the distance from the 3rd quartile to the largest observation, the data set is most likely Two answers correct. 1. symmetrical. 2. nonsymmetrical. 3. skewed to the right. 4. skewed to the left. 5. not skewed.
can you help for answer this ?
Determine the minimum sample size required when you want to be 95% confident that the sample mean is within two units of the population mean and = 4.3. Assume the population is normally distributed. n =
Please help with part e
Determine whether the following statements are True or False: If we increase the confidence level C, then the width of the CI decreases, i.e., the CI becomes narrower. (Hint: think about what happens to the margin of error m) Suppose the mean of a population µ = 100. If we found that the margin of error is m = 2 for level of confidence 98%, then we can be 98% confident that a sample mean (computed from a sample of the same size used to compute m) is in the interval (98, 102).
Assume that a sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level. Round the margin of error to four decimal places.95% confidence; n = 333, x = 54
A Find the standard error of the mean for each sampling situation (assuming a normal population). (Round your answers to two decimal places). 1. O=56, n=4 2. O=56, n=16 3. O=56, n=64 B. What happens to the standard error each time you quadruple the sample size? The standard error is ________ by half.
Determine the minimum sample size required when you want to be 95% confident that the sample mean is within one unit of the population mean and o=17.2. Assume the population is normally distributed
Practice Exercise A. Consider the population consisting of values (1, 3, 4). The sample size is 2 from this population. Compute the following: 1. Mean of the sampling distribution of the means 2. Variance of the sampling distribution of the means 3. Standard deviation of the sampling distribution of the means

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