DTAL-AP Statistics - Unit 1 - 22-23MICHAEL, DANAYSHA0012 of 20What does it mean if your score on the math portion of the SAT is in the 76th percentile?O it means that 76% of the test takers scored equal to or lower than youO it means you answered 24% of the questions correctlyO it means you answered 76% of the questions correctlyO it means that you answered 24 questions out of 76 correctlyO it means that 76% of the test takers scored equal to or higher than youhp

The percentile score is the percentage or proportion of the score that is less than or equal to a…

Answered: What does it mean if your score on the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored 75, 83, and 81 on her three in-class tests and also has a homework average of 88. Her professor calculates the class grade by finding the mean of five grades: three in-class tests, the homework average and the final exam. What is the minimum score Joselyn must earn on the final exam to have a class grade (mean) of 80? A. 67 B. 95 C. 70 D. 73
I need help with 2, 3 and 6.
Last semester, Bonnie took a different Biology teacher than her friend Tony. After the final exam, they compared test scores. Bonnie earned an 83 (mean = 75.6, sd = 5), and Tony earned an 87 (mean = 80.3, sd = 7). Who did better? Why?
240 students responded to the imaginary student canteen survey. The survey asked whether the student chose a meat or vegetable dish for lunch. In addition, we asked for an opinion on the quality of the food on a scale of 1-5, where 1 means the worst and 5 the best. 131 of the students chose vegetarian food and 109 meat food. Of those who chose vegetarian food, 17 students gave a grade 1, 25 students gave a grade 2, 38 students gave a grade 3, 35 students gave a grade 4, and 16 students gave a grade 5. Of those who chose the meat dish, 14 students gave a grade 1, 29 students gave a grade 2, 42 students gave a grade 3, 20 students gave a grade 4, and 4 students gave a grade 5. Use the function chisq.test() to test the null hypothesis that the choice of lunch is not connected to the opinion about the quality of the food. What is the p-value? Give the answer to three decimal places. Remember the correct decimal separator.
th Last year over 8000 students took an entrance exam at a certain state university. Tom's score was at the 55 percentile. Leila's score was at the 86 percentile. (a) Which of the following must be true about Tom's and Leila's scores? O Tom scored higher than Leila. O Both Tom and Leila scored higher than the median. O Leila answered 31 more questions correctly than Tom. O Tom's and Leila's scores were both in the bottom half of all scores. (b) Which of the following must be true about Tom's score? O Tom scored lower than about 55% of the students who took the exam. O Tom got about 55% of the questions correct. Tom scored higher than about 55% of the students who took the exam. Tom got about 55% of the questions wrong. Submit Assignme Continue iert 144 %23 4. 6. 8 R Y U H K L A. D paus V. B M alt ctri alt USE YOUR Dew de LL
A mathematics professor lost a test paper belonging to one of her students. She remembered that the mean score for the class of 20 was 81 and that the sum of the 19 other scores was 1530. What was the grade on the paper she lost?
Is the number two in the sentence a statistic or a perimeter? Two students out of all 29 students in a class have red hair.
A student has an average of 81 on four equally weighted tests she has taken in her statistics class. What grade must she receive on her fifth test if she needs an average score of 83? Answer is 91? Can you help me to explain to me step by step?
Thomas scored at the 45th percentile on the midterm. Which interpretation of his score is the best? Group of answer choices 45% of the people tested exceeded his score. Thomas had a better score than 45% of the people tested. Thomas got 45% of the items correct. More than one of the above is appropriate.
There are five students who scored 90, 90, 95, 90, 92 on the midterm exam. The 6th person did not take a test and received zero. What will happen to the mean?
Samantha took an exam in her statistics class and received 90 out of 100. Samantha thought that was a good score, but she wanted to know how high her score was in relation to the rest of the class. Her professor said her Z-score was -0.29. How should Samantha interpret her Z-score? a. Samantha’s score is 0.29 points above the class mean.b. Samantha’s score is 29% above than the class mean.c. Samantha’s score is 0.29 standard deviations above the class mean.d. Samantha’s score is 0.29 standard deviations below the class mean.
There are five numbers in a data set. They are 3, 1, 16, 20 and x, where x is one of the largest two number of the five. What value does x need to be so that the median of the five numbers equals the mean of the five numbers?

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