Sample Size: non-proportion and proportion data You would like to determine the average diameter of a...
Sample Size: non-proportion and proportion data
You would like to determine the average diameter of a cylindrical pin that is manufactured by your company. How many samples would we need to collect if we wish to be 97% confident that the sample mean will be within 0.0005 inch of the true mean given that the population has a standard deviation of 0.0015 inch and is approximately normally distributed.
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Sample Size: non-proportion and proportion
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You would like to determine the average diameter of a...
Consider a population with a quantitative variable for which we would like to estimate ne population...
Consider a population with a quantitative variable for which we would like to estimate ne population mean. We do so by taking random samples and calculating the sample nean. Use this scenario for questions 14 and 15. 14. If the population is normally distributed, what does that imply for the sample mean? a. The sample mean will be non-normal for small samples sizes, but become more normal as the sample size increases. b. The sample mean is guaranteed to be...
Determine the minimum sample size required when you want to be 90% confident that the sample...
Determine the minimum sample size required when you want to be 90% confident that the sample mean is within one unit of the population mean and sigma=19.8. Assume the population is normally distributed. A 90 % confidence level requires a sample size of?
Determine the minimum sample size required when you want to be 99% confident that the sample...
Determine the minimum sample size required when you want to be 99% confident that the sample mean is within one unit of the population mean and sigma equals 16.3. Assume the population is normally distributed.
Determine the minimum sample size required when you want to be 95% confident that the sample...
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 standard deviation is 15.9. Assume the population is normally distributed.
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 35%. You would like to be 99% confident that your estimate is within 1% of the true population proportion. How large of a sample size is required? n=
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.78. You would like to be 99% confident that your esimate is within 4% of the true population proportion. How large of a sample size is required?
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 17%. You would like to be 99% confident that your estimate is within 1% of the true population proportion. How large of a sample size is required? n =
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.11. You would like to be 98% confident that your esimate is within 3% of the true population proportion. How large of a sample size is required? _____
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.65. You would like to be 90% confident that your estimate is within 5% of the true population proportion. How large of a sample size is required?
Please show me how to solve this problem thank you! The diameter of a brand of...
Please show me how to solve this problem thank you!
The diameter of a brand of ping-pong balls is approximately normally distributed, with a mean of 1.31 inches and a standard of 0.08 inch. A random sample of 4 ping-pong n (d) of the mean? O A. Because the population diameter of Ping-Pong balls is approximately normally distributed, the sampling distribution of samples of 4 will be the unilorm distribution O B. Because the population diameter of Ping-Pong balls is...
Consider a population with a quantitative variable for which we would like to estimate ne population mean. We do so by taking random samples and calculating the sample nean. Use this scenario for questions 14 and 15. 14. If the population is normally distributed, what does that imply for the sample mean? a. The sample mean will be non-normal for small samples sizes, but become more normal as the sample size increases. b. The sample mean is guaranteed to be...
Please show me how to solve this problem thank you!
The diameter of a brand of ping-pong balls is approximately normally distributed, with a mean of 1.31 inches and a standard of 0.08 inch. A random sample of 4 ping-pong n (d) of the mean? O A. Because the population diameter of Ping-Pong balls is approximately normally distributed, the sampling distribution of samples of 4 will be the unilorm distribution O B. Because the population diameter of Ping-Pong balls is...
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