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Author Question: Two placement exams are available that students can take to determine which math class they should ... (Read 272 times)

charchew

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on: Jun 24, 2018
Two placement exams are available that students can take to determine which math class they should begin with in their freshman year. It is believed that there is no difference in the mean scores that would be received for the two tests.
 
  To test this using a 0.05 level of significance, a randomly selected group of students took both tests and had their scores recorded. The following data were obtained:Student Test A Test B1 78 822 86 743 74 794 72 935 75 806 68 827 77 99Based on these data, the test statistic is approximately t = -1.892. Indicate whether the statement is true or false

Question 2

A university computer lab manager wishes to estimate the mean time that students stay in the lab per visit. She believes that the population standard deviation would be no larger than 10 minutes.
 
  Further, she wishes to have a confidence level of 90 percent and a margin of error of 2.00 minutes. Given this, the sample size that she uses is approximately 60 students. Indicate whether the statement is true or false


ebonylittles

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Reply #1 on: Jun 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

FALSE


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