g A random sample of 71 individuals shows an average income of $53,511 per year. We know from previous research that the standard deviation for income is 23,440. I hypothesize that the true population mean for income is $52,138 per year. What is the z-statistic for this hypothesis

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3