Exam 6: Introduction to Inferential Statistics Sampling the Sampling Distribution

When using sample means as estimators, we usually estimate the population standard deviation with

The goal of all techniques for selecting probability samples is to select samples that are

In estimation procedures, ___________ are estimated based on the value of ____________.

As our confidence in an interval estimate increases, the width of the interval

Public opinion polls and election projections are examples of

The fundamental principle of probability sampling is that a sample selected by________ is very likely to be __________.

Unless a sample is __________, it cannot be used to make accurate generalizations to a population.

Samples are to populations as

In a sampling distribution of sample means, most of the sample means will

Statistics are characteristics of samples while ________ are characteristics of ___________.

The efficiency of any estimator can be improved by

The purpose of inferential statistics is to acquire knowledge of the ____________ from the ___________ by means of the _____________ distribution

When we use larger samples (N > 100) we can assume a normal sampling distribution because of

According to the text, the General Social Survey demonstrates that, since the 1970s, American attitudes about homosexuality have

The larger the sample size (N), the

In the formulas for constructing interval estimates based on sample proportions, the expression Pu (l - Pu) has a maximum value of

To increase the probability that a confidence interval will include the population parameter

Sample size and the width of confidence intervals

From a random sample of 300 students at a state university, you find the average number of hours of study time each week is 30 with a standard deviation of 5. In this research situation,

Using the General Social Survey as an example, the concept of the sampling distribution allows us to link the sample to the population of