# Question: If the population mean is 1 247 the population variance is

If the population mean is 1,247, the population variance is 10,000, and the sample size is 100, what is the probability that x̄ will be less than 1,230?

## Answer to relevant Questions

When sampling is from a population with standard deviation σ = 55, using a sample of size n = 150, what is the probability that will be at least 8 units away from the population mean µ? When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the sample size is 200, what is the probability that the sample proportion will be at least 0.20? Suppose that in a sampling survey to estimate the population variance, the biased estimator was used instead of the unbiased one. The sample size used was n = 100, and the estimate obtained was 1,287. Can you find the value ...When sampling is from a population with mean 53 and standard deviation 10, using a sample of size 400, what are the expected value and the standard deviation of the sample mean? Searches at Switzerland's 406 commercial banks turned up only $3.3 million in accounts belonging to Zaire's deposed president, Mobutu Sese Seko. The Swiss banks had been asked to look a little harder after finding nothing at ...Post your question