Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B,...

Question

Question

Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B, 40% C, and 10% D. You might find figure 3.1 helpful as you complete this assignment. What are the cutoff scores for the various grades?

Table 3.1 48 49 65 VO,max Values 45 50 51 51 48 43 48 41 53 48 45 46 50 51 47 48 47 46 49 49 44 49 45 48 51 48 52 47 44 47 51

math Statistics-And-Probability

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

µ	48.30769
σ	2.96608

Grade	Percent	Lower Cutoff score	Upper Cutoff score
A	20	50.80401	and above
B	30	48.30769	50.80401
C	40	44.50651	48.30769
D	10	44.50651	and below

Add a comment

Answer 2

Similar Homework Help Questions

estimate the average age at which multiple sclerosis patients were diagnosed with the condition for the...

estimate the average age at which multiple sclerosis patients were diagnosed with the condition for the first time in a given city. How big should the sample be? Define your procedures for this estimate (if necessary, set your own values of unknown parameters, based on statistical theory). In Table 1 you will find all ages of this patient population. 54 58 56 48 62 59 55 56 60 52 53 61 56 56 53 37 71 62 39 61 54...
NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In...

NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In the Sanitary District of Chicago, operating engineers are hired on of a competitive civil-service examination. In 1966, there were 223 appl for 15 jobs. The exam was held on March 12; the test scores are s arranged in increasing order. The height of each bar in the histogram next page) shows the number of people with the correspondin examiners were charged with rigging the...
Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the stu...

Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the student spent participating in a GMU club or sport and working for pay outside of GMU was recorded. Values of 0 indicate the students either does not participate in a club or sport or does not work a job for pay. The goal of...

Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores”...

Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores” contains a random sample of 269 STAT 250 students’ final exam scores (maximum of 80) collected over the past two years. Answer the following questions using this data set. a) What proportion of students in our sample earned B’s on the final exam? A letter grade of B is obtained with a score of between 64 and 71 inclusive. Hint: You can do this...
Solve all parts and show working: (i) : Use a 5% significance level to test the...

Solve all parts and show working: (i) : Use a 5% significance level to test the claim that the unsuccessful applicants are from a population with a greater mean age than the mean age of successful applicants. Based on the result, does there appear to be discrimination based on age? What did you use to get the answer? (ii): Is it a parametric or non-parametric test? If it is a parametric test what is distribution of test statistic The Revenue...
The ages of the presidents at the time of their inauguration was recorded. The Five-Number...

The ages of the presidents at the time of their inauguration was recorded. The Five-Number Summary and the sorted list of the data is provided. Column n Min Q1 Median Q3 Max President Age at Inauguration 44 42 50.5 54.5 57.5 69 Sorted(President Age at Inauguration) 42 43 46 46 47 47 48 49 49 50 50 51 51 51 51 52 52 54 54 54 54 54 55 55 55 55 56 56 56 57 57 57 57...

1. Descriptive Statistics Data 20 25 40 41 42 43 44 45 46 47 48 49...

1. Descriptive Statistics Data 20 25 40 41 42 43 44 45 46 47 48 49 50 50 51 52 53 54 55 56 57 58 59 60 65 80 90 For the data above calculate and draw the following: a. A Frequency Diagram with 7 classes. b. A Histogram C. A Stem and Leaf Diagram. Don't forget the instruction. d. The Five Number Summary e. The Box and Whisker Plot which needs the IQR, the Lower Fence and Upper...
3. A hospital administrator wished to study the relation between patient satisfaction (Y) and pat...

solvel only E F G H below is pat data 3. A hospital administrator wished to study the relation between patient satisfaction (Y) and patients age (Xi, in years), severity of illness (X2, an index) and anxiety level (X3, an index). The administrator randomly selected 23 patients and collected the data in pat, where larger values of Y, X2 and X3 are, respectively, associated with more satisfaction, increased severity of illness and more anxiety. The data is saved in Moodle2...
West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not...

West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James West, head of the TQM program at West's Austin plant, believes there is no problem because his batteries have had an average life of 5050 hours, about 10% longer than competitors' models. To raise the lifetime above this level would require a new level of technology not available to West. Nevertheless, he is concerned enough...

Use the stom-and-leaf plot to list the actual data entries. What is the maximum data entry?...

Use the stom-and-leaf plot to list the actual data entries. What is the maximum data entry? What is the minimum data entry? Key 217.27 27 34 41335667 5011 6777 7377 84 Choose the correct actual data entries below O A. 27, 34, 41, 43, 45, 46, 47, 50, 51, 52, 53, 54, 55, 56, 58, 59, 67, 73, 77, 84 OB. 27.34, 41, 43, 43, 45.46.46, 47,5 0,5 1,51,52,53,53.53.54 54 54 5.4 55 56.56.5 8.5 9.6.7,67,67.73.7.7.7.7.8.4 OC. 27.34.41, 43, 43,...

Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B,...

Homework Answers

Add Answer to:
Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B,...

Post as a guest

Earn Coins

estimate the average age at which multiple sclerosis patients were diagnosed with the condition for the...

NUMBER OF PEOPLE 10.2 10.0 10.1 8.5 10.2 8.2 8 Source: United States Census. 11. In...

Problem 4: Variables that may affect Grades The data set contains a random sample of STAT 250 Final Exam Scores out of 80 points. For each individual sampled, the time (in hours per week) that the stu...

Problem 1: Confidence Interval for Percentage of B’s. The data set “STAT 250 Final Exam Scores”...

Solve all parts and show working: (i) : Use a 5% significance level to test the...

The ages of the presidents at the time of their inauguration was recorded. The Five-Number...

1. Descriptive Statistics Data 20 25 40 41 42 43 44 45 46 47 48 49...

3. A hospital administrator wished to study the relation between patient satisfaction (Y) and pat...

West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not...

Use the stom-and-leaf plot to list the actual data entries. What is the maximum data entry?...

Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B,...

Homework Answers

Add Answer to: Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B,...

Post as a guest

Earn Coins

Add Answer to:
Use the 65 scores in table 3.1 and develop grades based on 20% A, 30% B,...