Confidence intervals of the mean

Calculating the confidence interval

Sample properties

Sample mean, x = ?

Sample standard deviation, s = ?

Sample size, n = 10

Degrees of freedom (df) = n - 1 = 9

t_{α(2), df} = ?

Lower Bound:

x – t_{α(2), df}

= ?

Upper Bound:

x + t_{α(2), df}

= ?

(Click on variables to replace them with their current values.)

This confidence interval does? include the true mean.

Mean = 34

Standard deviation = 34

Lower bound of confidence interval = 34

Upper bound of confidence interval = 34

This interval 34 include the true mean.