A sociologist wants to know the average number of times US families eat their evening meal at home together each week. Data was collected from 50 random families. The sample mean is 3.8 meals per week with a sample standard deviation of 2.5. Construct a 95% confidence interval to estimate the population mean.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?