... even concentrate my dog ran away again and I just want to get this assignment done. I have to work on this old crappy laptop because excel on my mac can't have the datapak or whatever. I did the first part of my assignment and any help besides "just google. . ." would be helpful as I have already googled stuff and I still don't get it.
First Question: In one elementary school, 200 students are tested on the subjects of math and English. The table below shows the mean and standard deviation for each subject.
Mean | SD
Math 67 | 9.58
English 78 |12.45
One student’s math score was 70 and the same student’s English score was 84. On which exam did the student do better?
Second Question: Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and a standard deviation of 4. Do not use the web calculator to answer the following questions. Instead, use the Z distribution table below and Appendix A in the Jackson text.
a. If Andrew scored 45 on this test, what is his Z score?
b. If Anna scored 30 on this test, what is her Z score?
c. If Bill’s Z score was 1.5, what is his real score on this test? 90.9
d. There are 200 students in a sample. How many of these students will have scores that fall under the score of 41?
The picture goes with the second question