Professor from Georgia Tech wanted to compare (Which grade is better) a grade Sam received on...
Professor from Georgia Tech wanted to compare (Which grade is better) a grade Sam received on a test with Justine’s grade on an exam in his course. Following are the information given on their grades:
Sam: Justine:
Scored 45 points Scored 72 points
Mean on test 38 Mean on exam 65
S. Deviation 7 points S. Deviation 14 points
Explain, whose grade is better ?
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Professor from Georgia Tech wanted to compare (Which grade is
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5-8 show work
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Student stress at final exam time comes partly from the
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A random sample of 200 BCOM students from recent years was taken
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A Statistics professor assigned 10 quizzes over the course of the semester. He wanted to see if there was a relationship between the total mark of all 10 quizzes and the final exam mark. There were 203 students who completed all the quizzes and wrote the final exam. The standard deviation of the total quiz marks was 15, and that of the final exam was 16. The correlation between the total quiz mark and the final exam was 0.8. Based on...
just the last ones on this
A trucking company determined that the distance traveled per truck per year is normally distributed, with a mean of 80 thousand miles and a standard deviation of 10 thousand miles. Complete parts (a) through (c) below. a. What proportion of trucks can be expected to travel between 69 and 80 thousand miles in a year? The proportion of trucks that can be expected to travel between 69 and 80 thousand miles in a year...
A professor wanted to determine whether an online homework system improved scores on a final exam. In the fall semester, he taught a class using the online homework system (which meant students did their homework online and received instant feedback about their answers along with helpful guidance). I spring semester, he taught a class without the homework system (which meant students were responsible for doing their homework the old-fashioned way - paper and pencil). The professor made sure to teach...
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5-8 show work
5. 6. At a local high school 5000 juniors and seniors recently took an aptitude test. The results of the exam were normally distributed with mean - 450 and o = 50. Calculate the following: a. The PERCENT of students to the nearest tenth of a percent that scored over 425 b. The number of students that scored more than 475 c. The probability of a student selected at random having scored between 400 and 575 A...
Student stress at final exam time comes partly from the
uncertainty of grades and the consequences of those grades. Can
knowledge of a midterm grade be used to predict a final exam grade?
A random sample of 200 BCOM students from recent years was taken
and their percentage grades on assignments, midterm exam, and final
exam were recorded. Let’s examine the ability of midterm and
assignment grades to predict final exam grades.
The data are shown here:
Assignment
Midterm
FinalExam...
Please help me answer theses. Thank you
on me stuaernts resuits neau trie steps Deiow ald compiete each item. Suppose a professor gives an exam to a class of 40 students and the scores are as follows. (Open the Lab 7.2 data set in StatCrunch.) 1. 35 44 46 4747 48 49 51 53 54 55 55 57 57 57 58 59 5959 59 60 60 60 60 60 62 62 62 6468 69 7072 73 7375 75 77 82...
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