Which of the following is NOT needed to determine the minimum sample size required to estimate a population proportion?
answer
standard deviation
σ
question
When analyzing polls, which of the following is NOT a consideration?
answer
The sample should be a voluntary response or convenience sample.
question
Which of the following is NOT a requirement for constructing a confidence interval for estimating the population proportion?
answer
trials are done without replacement
question
Which of the following is NOT an observation about critical values?
answer
A critical value is the area in the right-tail region of the standard normal curve.
question
Which of the following is NOT true of the confidence level of a confidence interval?
answer
There is a 1 - α chance, where α is the complement of the confidence level, that the true value of p will fall in the confidence interval produced from our sample.
question
A _______ is a single value used to approximate a population parameter.
answer
point estimate
question
Which of the following groups has terms that can be used interchangeably with the others?
answer
Percentage, probability, and proportion
question
Which concept below is NOT a main idea of estimating a population proportion?
answer
Using a sample statistic to estimate the population proportion is not utilizing descriptive statistics
question
A critical value, zα, denotes the
answer
z-score with an area of α to its right.
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