Question

Use these statistics to censtruct a 95% confidence intenal for the mean: n=205, sample ma=30.4,t=7.1, This would be

a) 1-prop 2 interval

Answer 1

To construct a 95% confidence interval for the mean, we can use the formula: CI = sample mean ± (t-value) * (standard error).

Step-by-step explanation:

To construct a 95% confidence interval for the mean, we can use the formula:

CI = sample mean ± (t-value) * (standard error)

First, calculate the standard error using the formula: standard error = sample standard deviation / √n

Then find the t-value for a 95% confidence level with 204 degrees of freedom:

Next, plug in the values into the formula to calculate the confidence interval:

CI = 30.4 ± (t-value) * (standard error)