Question 7Provide an appropriate response.Compare the scores: a score of 220 on a test with a mean of 200 and a standard deviation of 21 and a score of 90 on a test with a mean of 80 and astandard deviation of 8.O A score of 220 with a mean of 200 and a standard deviation of 21 is better.O The two scores are statistically the same.ab.O You cannot determine which score is better from the given information.M.O A score of 90 with a mean of 80 and a standard deviation of 8 is better.« < Question 7 of 28 >>>ilydfA Moving to another question will save this response.stakers5dfen Sho8.37Screen Sho2022-05.0.09M

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Answered: Question 7 Provide an appropriate…

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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Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The standard deviation of students lab measurements is o= 8 milligrams. Juan repeats the measurement 2 times and records the mean x of his 2 measurements. What is the standard deviation of Juan's mean result?
Someone tells you that the mean score on a test was 85, and the standard deviation was -10. What does this mean? A. Need more information to answer this question B. The most common score was 75. C. A majority of the class scored less than 85. D. This is not possible. Standard deviation cannot be negative.
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... x 0.9 A graph with a bell-shaped curve, divided into 2 regions by a line from top to bottom, on the left side. The region right of the line is shaded and labeled 0.9. The x-axis below the line is labeled "x". Question content area bottom Part 1 The indicated IQ score, x, is enter your response here. (Round to one decimal place as needed.)
Determine the number of standard deviations from the mean (z-score). In the United States, the distribution of a male's height has a mean of 69 inches with a standard deviation of 3 inches. How many standard deviations from the mean is John Doe, who is 67 inches tall? Question 15 options: 0.67 standard deviations below the mean 0.33 standard deviations below the mean 2 standard deviations below the mean 1 standard deviation below the mean
Player His Average Points Other's Average Points Other's Standard Deviation Fredo 153 163 15 Karl 163 183 35 Table 2.57 a. Which player had the higher average points when compared to the other players on his team? Fredo O Karl b. Use Table 2.57 to find the value that is three standard deviations above the mean for each team. Enter the exact answers. Fredo's team: Number Karl's team: Number C. Use Table 2.57 to find the value that is three standard deviations below the mean for each team. Enter the exact answers. Fredo's team: Number Karl's team: Number Next Back Question Menu- Quit & Save Submit Assignment 502 PM 200
Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P, the 11th percentile. This is the bone density score separating the bottom 11% from the top 89%. Which graph represents P ? Choose the correct graph below. O A. O B. OD. P11 P11 P11 P11 The bone density score corresponding to P1 is (Round to two decimal places as needed.) Click to select your answer(s). APR tv MacBook Air F9 F10 LLA 20 F3 F6 F8 F4 F5 F1 F2 & #3 7 8. %24
Suppose you have already calculated the mean, the average deviation, and the standard deviation of the weights in pounds of 20 third-graders. a. if these weights were converted to kilograms and the mean and the average deviation were once again calculated, would the second average deviation be (numerically) less than, greater than, or equal to the first average deviation? Explain your answer. b. If the standard deviation of these weights were calculated in kilograms, would it be (numerically) less than, greater than, or equal to the first standard deviation? Explain your answer
Students in a class took a test whose results were normally distributed. The mean score was an 81 and the standard deviation was 4.5. What score is at the 83rd percentile (round to the nearest whole number.) a.84 b.83 c.85 d.86
Sam took 4 courses last semester: Spanish, Physics, Biology, and Calculus. The means and standard deviations for the final exams, and Sam's scores are given in the table below. Convert Sam's score into z scores. Subject Mean Stand. dev. Sam's score Sam's z score Spanish 44 12 47 Physics 60 14 84.5 Biology 77 10 82 Calculus 70 12 79 On what exam did Sam have the highest relative score?(Enter the subject.) In the Biology class, there was a student with a z-score of 1.2. What score did that student earn on the exam?
For an Economics test the mean score is 100 and the standard deviation is 10, and for an Accounting test the mean score is 50 and the standard deviation is 4. You are given the test scores of a student who took both tests. Determine on which test the student had a better score. Enter E if the student did better on the Economics test Enter A if the student did better on the Accounting test Enter S if the student did relatively the same on both tests. A student scores 125.6 on the Economics test and 60.2 on the Accounting test. The student did better/same on test.
Step 3 In order to use the defining formula for sample standard deviation, it is helpful to first calculate (x – x)² for each data value in the data set 1, 6, 7, 8, 9. Use the values in the data set and the previously determined mean, x = 6.2, to complete the following table. 7 8 6.2 6.2 6.2 6.2 6.2 х — х -5.2 0.8 2.8 (x – x)² 27.04 0.04 3.24 Submit Skip (you cannot come back)
In a certain population, the mean score on a test is 420. The standard deviation is 105. If the distribution or scores is normal, which of these scores should occur most often. a. 385 b314 c. 540 d. 526

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