An analysis of the final test scores for Managerial Decision Making Tools reveals the scores follow...
An analysis of the final test scores for Managerial Decision Making Tools reveals the scores follow the normal probability distribution. The mean of the distribution is 75 and the standard deviation is 8. The instructor wants to award an “A” to students whose score is in the highest 5 percent. What is the dividing point for those students who earn an “A”?
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An analysis of the final test scores for Managerial Decision
Making Tools reveals the scores follow...
An analysis of the final test scores in this class shows that the scores follow the...
An analysis of the final test scores in this class shows that the scores follow the normal distribution. The mean of the distribution is 85 and the standard deviation is 6. The professor wants to award an A student whose score is in the highest 11% which means 89% of the class will have lower grades. What is the cut-off point (or score) for those students who earn an A versus those that earn a B? In other words, what...
make any adjustments to this calculation related to the small population size. (2 marks) QUESTION 4...
make any adjustments to this calculation related to the small population size. (2 marks) QUESTION 4 (5 marks) An analysis of the final test scores for Introduction to Business reveals the scores follow the normal probability distribution. The mean of the distribution is 75, and the standard deviation is 10. The professor wants to award an A to students whose scores are in the highest l 1%. What is the dividing point for those students who earn an A and...
(2 points) For students in a certain region, scores of students on a standardized test approximately...
(2 points) For students in a certain region, scores of students on a standardized test approximately follow a normal distribution with mean u = 543.4 and standard deviation o = 26.9. In completing the parts below, you should use the normal curve area table that is included in your formula packet. (a) What is the probability that a single randomly selected student from among all those in region who took the exam will have a score of 548 or higher?...
A statistical analysis is made of the midterm and final scores in a large course, with...
A statistical analysis is made of the midterm and final scores in a large course, with the following results:pnN Average midterm score = 65, SD 10, Average final score = The scatter diagram is football shaped. 65, SD 12, r 0.6 About what percentage of the class final scores above 70? b. A student midterm was 75. Predict his final score Suppose the percentile rank of midterm score was 95%, predict his percentile rank on the final d.) Of those...
(1 point) The scores of students on the SAT college entrance examinations at a certain high...
(1 point) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ=533.2 and standard deviation σ=29.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 539 or higher? ANSWER: For parts (b) through (d), consider a simple random sample (SRS) of 25 students who took the test. (b) What are the mean and standard deviation of the sample mean...
A professor found that historically, the scores on the final exam tend to follow a normal...
A professor found that historically, the scores on the final exam tend to follow a normal distribution. A random sample of nine test scores from the current class had a mean score of 187.9 points and a sample standard deviation of 32.4 points. Find the 90% confidence interval for the population mean score of the current class. A. [167.81, 207.99] B. [ 170.13 , 205.67] C. [ 166.73, 209.07] D. None of these answers are correct.
The scores of individual students on the American College Testing (ACT) composite college entrance examination have...
The scores of individual students on the American College Testing (ACT) composite college entrance examination have a normal distribution with mean 17.3 and standard deviation 5.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 25 or higher? (b) Now take an SRS of 67 students who took the test. What are the mean and standard deviation of the average (sample mean) score for the 67 students? μ = σ =...
Problem 1. 531.1 and standard deviation a-29.4 (2 points) The scores of students on the SAT...
Problem 1. 531.1 and standard deviation a-29.4 (2 points) The scores of students on the SAT colloge entrance examinations at a certain high school had a normal distribution with mean (a) What is the probability that a single student randomly chosen from all those taking the test scores 536 or higher? ANSWER For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the test (b) What are the mean and standard deviation of the...
If the SAT scores of students in a high school follow the normal distribution with mean...
If the SAT scores of students in a high school follow the normal distribution with mean = 1200 and standard deviation = 100, what is the probability that a randomly selected student's score is between 1000 and 1400? OA 0.9973 B. 0.9545 OC. 0.9999 OD. 0.6827 Reset Selection
Exam grades: Scores on a statistics final in a large class were normally distributed with a...
Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 71 and a standard deviation of 8. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. ol. (a) Find the 47th percentile of the scores. (b) Find the 65th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 12% of the class....
make any adjustments to this calculation related to the small population size. (2 marks) QUESTION 4 (5 marks) An analysis of the final test scores for Introduction to Business reveals the scores follow the normal probability distribution. The mean of the distribution is 75, and the standard deviation is 10. The professor wants to award an A to students whose scores are in the highest l 1%. What is the dividing point for those students who earn an A and...
(2 points) For students in a certain region, scores of students on a standardized test approximately follow a normal distribution with mean u = 543.4 and standard deviation o = 26.9. In completing the parts below, you should use the normal curve area table that is included in your formula packet. (a) What is the probability that a single randomly selected student from among all those in region who took the exam will have a score of 548 or higher?...
A statistical analysis is made of the midterm and final scores in a large course, with the following results:pnN Average midterm score = 65, SD 10, Average final score = The scatter diagram is football shaped. 65, SD 12, r 0.6 About what percentage of the class final scores above 70? b. A student midterm was 75. Predict his final score Suppose the percentile rank of midterm score was 95%, predict his percentile rank on the final d.) Of those...
Problem 1. 531.1 and standard deviation a-29.4 (2 points) The scores of students on the SAT colloge entrance examinations at a certain high school had a normal distribution with mean (a) What is the probability that a single student randomly chosen from all those taking the test scores 536 or higher? ANSWER For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the test (b) What are the mean and standard deviation of the...
If the SAT scores of students in a high school follow the normal distribution with mean = 1200 and standard deviation = 100, what is the probability that a randomly selected student's score is between 1000 and 1400? OA 0.9973 B. 0.9545 OC. 0.9999 OD. 0.6827 Reset Selection
Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 71 and a standard deviation of 8. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. ol. (a) Find the 47th percentile of the scores. (b) Find the 65th percentile of the scores. (c) The instructor wants to give an A to the students whose scores were in the top 12% of the class....
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