What is the main difference between point estimation and interval estimation?

Confidence Intervals and Hypothesis Testing

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Mathematics
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11th - 12th Grade
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Hard

Thomas White
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Point estimation provides a range of values.
Point estimation provides a single value, while interval estimation provides a range.
Interval estimation provides a single value.
Interval estimation is always more accurate than point estimation.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a component of a confidence interval?
Standard deviation
Sample size
Margin of error
Population variance
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a 95% confidence level imply?
95% of the confidence intervals will contain the true population parameter.
95% of the sample values fall within the interval.
The interval is 95% accurate.
95% of the population values fall within the interval.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sample proportion denoted by?
mu
x-bar
p-hat
p
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which condition is NOT required for constructing a confidence interval for population proportions?
Randomness
Large sample size
Independence
Normality
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the margin of error calculated in a confidence interval?
By dividing the z-score by the sample size
By multiplying the z-score with the standard deviation
By adding the z-score to the sample mean
By multiplying the z-score with the estimated standard error
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an incorrect interpretation of a confidence interval?
We are 90% confident that the population mean is within the interval.
There is a 90% probability that the population mean is within the interval.
The interval will capture the true parameter 90% of the time.
We are 90% sure that the population mean is within the interval.
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