Test the claim below about the mean of the differences for a population of paired data at the level of significance alpha. assume the samples are random and dependent, and the populations are normally distributed. claim: mu subscript dless than0; alphaequals0.01. sample statistics: d overbarequals1.3, s subscript dequals3.5, nequals16

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.

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl