Exam 4: Sampling and Estimation

Since the central limit theorem states that a normal distribution of sample means will result from virtually any underlying distribution,all of the following are true except ________.

Find the standard error of the mean when the population standard deviation is 2.4 and a sample of size 36 is taken.

What is the value of the finite population correction factor when a sample size of 125 was taken from a finite population of 500?

Cluster sampling ________.

Two common subjective sampling methods are judgment sampling and convenience sampling.

What sample size would be required to translate a population standard deviation from 2.9 to a standard error of the mean that is of the standard deviation?

Stratified random sampling ________.

For a sample size of 12,the degrees of freedom are ________.

For a 95% confidence interval for a population mean,there is ________.

If a confidence interval for a population mean is found to be wider than desired,the next step should be to ________.

Compare and contrast nonsampling error and sampling error.

The risk that the confidence interval does not contain the population mean can be reduced by ________.

As the sample size increases,________.

What is the value of the finite population correction factor when a sample size of 25 was taken from a finite population of 101?

A major consumer products company wants to measure the type and quantity of laundry detergent used by consumers.After choosing a suburban street at random,employees go door-to-door to every fifth house to ask for permission to view their laundry detergent supply.What sampling method is being used for this sampling plan?

The chi-square distribution is different from the normal or t-distributions in that chi-square is ________.

Without any prior information on the height of Christmas trees,how would you go about determining the 95% confidence interval for the population mean height of three-year-old Christmas trees?

The α used to calculate a confidence interval can be understood as ________.

A quality assurance technician has checked fifteen 2-liter bottles of a soft drink finding a 99% confidence interval of 1950 ml to 2025 ml for the mean fill volume.Which of the following is true?

A random number is a number that ________.