Home Library Explore SAT

Home Library Explore SAT

CI (CONFIDENCE INTERVAL) Flashcards | StudBud

Explore/CI (CONFIDENCE INTERVAL)

A sample standard deviation is the best point estimate of the

Knowing the population standard deviation, a 95% confidence interval infers that the population mean _

CI (CONFIDENCE INTERVAL)

8 terms·StudBud Administration·13 plays

Imported from external platform

Flashcards8 cardsFPractice quizPHost liveL

Questions 8

Answers

1
Knowing the population standard deviation, a 95% confidence interval infers that the population mean _
Is within ±1.96 standard errors of the sample mean
Is between 0 and 100%
Is too large
Is within ±1.96 standard deviations of the sample mean
2
A sample standard deviation is the best point estimate of the
Population mode
Population standard deviation
Population range
Population skewness
3
What is the z value to look up for a 99% confidence interval?
0.95
2.5758
1.96
2.3263
4
The distribution of Student's t is
Negatively skewed
Symmetrical
Positively skewed
A discrete probability distribution
5
When we use a "CI" to reach a conclusion about the population mean, we are applying a type of logic called
Graphics
The normal distribution
Statistical inference
Descriptive statistics
6
What is the z value for a 95% confidence interval?
2.58
1.96
0.95
1.6449
7
A confidence interval for a population mean..
Estimates the population standard deviation
Estimates likelihood or probability
Estimates the population range
Estimates the population range
8
A sample mean is the best point estimate of
The sample standard deviation
The population mean
The population standard deviation
The population median