In order to estimate the mean salary for a population of 500 employees, the managing director of a certain company selected at random a sample of 10 employees. We need to use the finite population correction factor in calculating the standard error of the sample mean.Group of answer choicesTrueFalse

Chapter 7Australian football salaries averaged $150,000 with a standard deviation of $80,000 in a recent year. Suppose a sample of 100 football players was taken. What was the standard error for the sample mean salary?Question 12Select one:a.$150,000b.$800,000c.$8,000d.$8 million

A simple random sample of size 300 was taken from the population of all manufacturing establishments in a certain state: 11 establishments in the sample had 100 employees or more. Estimate the percentage of manufacturing establishments with 100 employees or more.5 Attach a standard error to the estimate.

uppose that you are researching the mean height of all kangaroos in Australia. Out of the estimated 50 million kangaroos in Australia, you have a sample of 100 of them. When you are calculating the standard error, why is it appropriate to ignore the correction factor?Group of answer choicesWe have a large sample sizeWe are drawing with replacement so correction factor is not neededThe sample size is much smaller than the population sizeIt is too complicated to calculate the correction factor

A sample of 250 observations is to be selected at random from an infinite population. Given that the population proportion is 0.25, the standard error of the sampling distribution of the sample proportion is:

Standard Error is used primarily in which of the following?Question 1Answera.Estimating the population mean from the sample mean.b.Determining the range of sample means.c.Calculating the variance of a sample.d.Measuring the effect size of an experiment.