The College Board SAT college entrance exam consists of three parts: math, writing and critical reading (The World Almanac 2012). Sample data showing the math and writing scores for a sample of twelve students who took the SAT follow. Click on the datafile logo to reference the data. a. Use a level of significance and test for a difference between the population mean for the math scores and the population mean for the writing scores. What is the test statistic? Enter negative values as negative numbers. Round your answer to two decimal places. What is the -value? Round your answer to four decimal places. What is your conclusion? The input in the box below will not be graded, but may be reviewed and considered by your instructor.
b. What is the point estimate of the difference between the mean scores for the two tests? What are the estimates of the population mean scores for the two tests? Math test Writing test Which test reports the higher mean score? - Select your answer -