Exam 6: Introduction to Inferential Statistics Sampling the Sampling Distribution

A random sample of 200 includes 100 Protestants. The researcher estimates, at the 95% confidence level that between 43% and 57% of the population is Protestant. In this research situation

The theorems presented in Chapter 6 tell us that if a sample is "large" the sampling distribution will be

Two sample statistics are unbiased estimators. They are

The goal of estimation is to infer ___________ from ____________.

Statistics are to parameters as

To select a simple random sample, a researcher needs

The standard error of the mean is the same thing as

To construct the narrowest possible confidence intervals, use

If a sample is representative, it

Most polls conducted just before the 2012 presidential election showed that

The Central Limit Theorem states that as sample size becomes large

Unlike the sample and population distributions, the sampling distribution is

A major problem with non-probability samples is that they

Wider confidence intervals

In estimation procedures, the Z score that corresponds to an alpha of .05 is

In the United States, based on the responses of a random sample to a survey, between 70% and 80% of the people who do the family grocery shopping are women. This is

Social scientists gather data from samples instead of populations because

An alpha level of 0.05 is the same as a confidence level of

We can estimate the probability that sample means and proportions lie within a given distance of the population value because these statistics are

I surveyed 48 randomly-selected residents of the apartment complex where I live to determine their voting habits. I can only use this information to generalize to all the residents if