from below table in 99% confidence interval category ; for s is within 40% of ; sample size required is 22.
hence minimum sample size needed is 22
7.3.19 Question Help * Assume that the sample is a simple random sample obtained from a...
Question Help Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviations is within 40% of o. Is this sample size practical? To be 95% confident that s is within 1% 5% 10% 20% 30% 40% 50% of the value of the sample size 19,205 768 192 n should...
Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 99% confident that the sample standard deviation s is within 1% of Is this sample size practical? To be 95% confident that s is within of the value of ơ, the sample size n should be at least To be 99% confident that s is within...
Assume that the sample is a simple random sample obtained from a normally distributed population of flight delays at an airport. Use the table below to find the minimum sample size needed to be 95% confident that the sample standard deviation is within 30% of the population standard deviation. A histogram of a sample of those arrival delays suggests that the distribution is skewed, not normal. How does the distribution affect the sample size? To be 95% confident that s...
Assume that the sample is a simple random sample obtained from a normally distributed population of flight delays at an airport. Use the table below to find the minimum sample size needed to be 95% confident that the sample standard deviation is within 30% of the population standard deviation. A histogram of a sample of those arrival delays suggests that the distribution is skewed, not normal. How does the distribution affect the sample size? To be 95% confident that s...
Question Help Assume that the sample is a simple random sample obtained from a normally distributed population of flight delays at an airport. Use the table below to find the minimum sample size needed to be 95% confident that the sample standard deviation is within 1% of the population standard deviation. A histogram of a sample of those arrival delays suggests that the distribution is skewed, not normal. How does the distribution affect the sample size? To be 95% confident...
Assume that the sample is a simple random sample obtained from a normally distbuted population of IQsores of stics professors. Use the below to find the minimum sample size needed to be 95% confident that the sample standard deviations is within 40% of a Is this sample size practical To be 95% confident that is within 13 % 100 2 3 4 5 of the value of the sample size I should be at least 19.205 768 1024 21 28...
Assume that the sample is a simple random sample obtained from a normally distributed population of flight delays at an airport. Use f of the To he 9546 confident that s is. within table below to find the minimum sample size needed to be 95% confident that the sample standard deviation is within 5 % A histogram of a sample of those arrival delays suggests that the distribution is skewed, not normal. How does the distribution affect the sample size?...
Find the minimum sample size needed to be 99% confident that the sample's variance is within 30% of the population's variance.
Find the minimum sample size needed to be 99% 99 % confident that the sample's variance is within 50% 50 % of the population's variance. I know that the answer is 69, but how do you get to this answer?
A simple random sample of size n = 40 is drawn from a population. The sample mean is found to be x= 120.9 and the sample standard deviation is found to be s = 12.1. Construct a 99% confidence interval for the population mean. The lower bound is (Round to two decimal places as needed.)