SAT Scores How do California high school studentscompare to students nationwide in their

Chapter 9, Problem 73

(choose chapter or problem)

SAT Scores How do California high school studentscompare to students nationwide in their collegereadiness, as measured by their SAT scores? The nationalaverage scores for the class of 2010 were 501 on the criticalreading portion, 516 on the math portion, and 492 onthe writing portion.23 Suppose that 100 California studentsfrom the class of 2010 were randomly selected andtheir SAT scores recorded in the following table:Critical Reading Math WritingSample Average 499 514 490Sample Standard Deviation 98 96 92a. Do the data provide sufficient evidence to indicatethat the average critical reading score for allCalifornia students in the class of 2010 is differentfrom the national average? Test using a .05.b. Do the data provide sufficient evidence to indicatethat the average math score for all Californiastudents in the class of 2010 is different from thenational average? Test using a .05.c. Could you use this data to determine if there is adifference between the average math and criticalreading scores for all California students in theclass of 2010? Explain your answer.