Drawing Inferences, Stats and Probability

Which of these values is a parameter?

• x

• myu

• z

What do you call to the processes involved in making conclusions about population values?

• Estimating parameters

• hypothesis testing

• inferential statistics

• descriptive statistics

Subsets of populations are called ______.

• averages

• estimates

• elements

• Samples

Which of the following best represents the central value of a set of data?

• variance

• average

• standard deviation

• proportion

What do you call a single value that may refer to a parameter value?

• Z statistic

• point estimate

• interval estimate

• T statistic

The _________ is a range of values that contains the parameter value.

• Confidence limits

• confidence coefficient

• confidence interval

• confidence level

Which of the following shows graphical results in making inferences about population values?

• Pie graph

• normal curve

• trend line

• bar graph

Which of the following are the 95% confidence coefficients?

• ±1.65

• ±1.96

• ±2.33

• ±2.58

Which of the following are the 99% confidence coefficients?

• ± 1.645

• ±1.96

• ±2.33

• ±2.58

When α=0.01, the critical values are _____.

• ±2.58

• ±2.33

• ±1.96

• ± 1.645