Topic
Q:
In constructing a \( 99 \% \) confidence interval to estimate \( \mu \)
if \( n=24 \), what is the critical \( t \)-value? (Enter a value from the table to 3 decimal places)
Q:
Looking at the effect of making changes to \( n \) and confidence level in the class problems:
When a larger confidence level is selected, the error gets smaller or larger?
larger
smaller
Q:
In general, when constructing a confidence interval:
The more confident you wish to be, the less you have to be confident of.
True
False
Q:
In general, when constructing a confidence interval:
The more confident you wish to be, the less you have to be confident of.
Q:
Looking at the effect of making changes to n and confidence level in the class problems:
When a larger confidence level is selected, the error gets smaller or larger?
Q:
Looking at the effect of making changes to n and confidence level in the class problems:
When a smaller sample size is taken, the error gets smaller or larger?
Q:
Looking at the effect of making changes to n and confidence level in the class problems:
When a smaller sample size is taken, the error gets smaller or larger?
Q:
Construct a \( 95 \% \) confidence interval for \( \mu \) if the sample size \( n=34 \), the sample mean \( \bar{x}=18.6 \), and the
sample standard deviation \( s=4.2 \).
Enter the confidence interval using no spaces between, and use a lowercase \( m \) for the mean of the
population and round to 3 decimals. For example, \( 112.380<m<118.370 \)
Q:
Find the error in constructing a \( 95 \% \) confidence interval for \( \mu \) if the sample size \( n=15 \), the sample
mean \( \bar{x}=18.6 \), and the sample standard deviation \( s=4.2 \).
Enter a number to 3 decimal places.
Q:
In constructing a \( 90 \% \) confidence interval to estimate \( \mu \)
if \( n=12 \), what is the critical \( t \)-value? (Enter a value from the table to 3 decimal places)
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