An article presents a study of the failure pressures of roof panels. Following are the failure pressures, in kPa, for five panels constructed with 6d smooth shank nails. These data are consistent with means and standard deviations presented in the article. 3.32 2.49 3.45 2.38 3.01 Find a 95% confidence interval for the mean failure pressure for this type of roof panel. Round the answers to three decimal places.

95% confidence interval: (2.339,3.521)

Step-by-step explanation:

We are given the following in the question:

3.32, 2.49, 3.45, 2.38, 3.01

Formula:

where are data points, is the mean and n is the number of observations.  

Sum of squares of differences = 0.925

95% confidence interval:

Putting the values, we get,  

every 5 customers that walk in, only 2 buy popcorn.

step-by-step explanation:

basically 2/5.

brainliest would be appreciated.

square root

step-by-step explanation: