A sample of 40 songs from a student’s iTunes playlist showed a mean length of 3.542 minutes with a standard deviation of 0.311 minute. Construct a 95% confidence interval for the population standard deviation.

answer: what equations are there

step-by-step explanation:

30005

yes ok                                            

step-by-step explanation:

a and d

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation: