Imagine you take an exam in which the μ = 50, and σ = 10. You receive a score at the 46th percentile. What is your raw score?
On an exam with μ-52, you have a score of X-56. Which value for the standard deviation would give you the highest position in the class distribution? 16. d. Cannot be determine 17. For a population with μ-80 and σ-10, what is the z-score corresponding to X-95 a. +0.25 b. +0.50 c. +0.75 d. +1.50
14. On an exam with a mean of μ = 70, you have a score of X = 75. Which of the following values for the standard deviation would give you the highest position within the class? Hint: Graph the mean and figure out which standard deviation makes the most sense for getting a high score. How far away from the mean do we want the score of 75 to be? a. σ = 1 b. σ = 5 c....
A new exam was written to be used as an entrance exam. You took the exam and your score report said that you got a score of 633 points out of 800 possible and that the mean and standard deviation for all test takers is μ = 400 and σ = 100 and the distribution is normal. What percentage of students taking the test scored higher than you did? The department decides to accept all the students who score in...
A statistics professor gave an exam on performing the T-Test with σ unknown. The exam had the bonus question "Guess the average score on this final exam. If a T-Test is performed and the mean guess for the class is not significantly different from the true average exam score, everyone in the class will then receive two bonus points." There were 10 students that took the final exam. The true average exam score was 89.3. The professor conducts a one-mean...
Take Test:CH 4 Exam Test Information Description Instructions Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed later Question Completion Status: Close Window Δ Moving to another question will save this response. « < Question 6 of 20 > Question 6 2 pointsSave Answer A population of scores has μ-100 and σ 25. If every score in the population is multiplied by 2, then what are the new values...
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find the 96th percentile. The 96th percentile is _______
Us the following means and standard deviations: for ACT, µ=21, σ=3 and for SAT, µ=500, σ=100. (a) You take the ACT test and the SAT test. You get a 24 on the ACT and a 660 on the SAT. The college that you apply to only needs one score. Which do you want to send them (that is, which score is better: 24 or 660)? Why? (b) What is the probability of having an ACT score of 20 or less?...
μ = 84 σ = 5.1 n = 42 Questions: i. You scored a 91, what percentage of the students did you score higher than and what is your z-score? ii. What is the score range of 68% of the class? iii. How many students (round up) scored less than 70% on the exam? iv. How many students (round up) earned an A (90%+)? v. How many students scored a B (> 80% and < 90%)?
Assume the random variable X is normally distributed with mean μ= 50 and standard deviation σ=7. Find the 80th percentile.The 80th percentile is _______ (Round to two decimal places as needed.)
Take Test: CH 4 Exam Test Information Description Instructions Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed later. Question Completion Status: Close Window Δ Moving to another question will save this response. Question S of 20 ) » Question 5 2 points Save Answer You have a score of X 75 on a math exam. The mean score for the class on the exam is μ = 85,...