Exam 7: Sampling and Sampling Distributions

In a local university, 70% of the students live in the dormitories.A random sample of 75 students is selected for a particular study.The probability that the sample proportion (the proportion living in the dormitories) is at least 0.60 is

The population being studied is usually considered _____ if it involves an ongoing process that makes listing or counting every element in the population impossible.

Random samples of size 64 are taken from an infinite population whose mean and standard deviation are 240 and 16, respectively.The distribution of the population is unknown.The mean and the standard error of the mean are

A subset of a population selected to represent the population is a

A population has a standard deviation of 16.If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within ±2 of the population mean?

A simple random sample of size n from an infinite population of size N is to be selected.Each possible sample should have _____ of being selected.

A data set that has so many variables that simultaneous consideration of all variables is infeasible is which of the following?

Which of the following attributes or dimensions of big data is described as the amount of data generated?

Random samples of size 17 are taken from a population that has 200 elements, a mean of 36, and a standard deviation of 8.Which of the following best describes the form of the sampling distribution of the sample mean for this situation?

The following information was collected from a simple random sample of a population. The point estimate of the mean of the population is

Which of the following attributes or dimensions of big data is described as the reliability of data generated?

Doubling the size of the sample will

Which of the following attributes or dimensions of big data is described as the diversity in types and structures of data generated?

The following data was collected from a simple random sample of a population. The point estimate of the population standard deviation is

The absolute value of the difference between the point estimate and the population parameter it estimates is the _____ error.

A sample of 92 observations is taken from an infinite population.The sampling distribution of is approximately

A simple random sample of 100 observations was taken from a large population.The sample mean and the standard deviation were determined to be 1234 and 120 respectively.The standard error of the mean is

In stratified random sampling,​

A simple random sample from an infinite population is a sample selected such that

As the sample size increases, the variability among the sample means