What sample size should be used if we would like to estimate the mean age of the college students at a particular campus with 95% confidence? we would like to be accurate to within three years, and we will assume the population is normally distributed with a standard deviation of 5.1 years.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

What term makes it inconsistent y=2x - 4

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?