The mean test scores with standard deviations of four English classes are given below. Class Mean Standard Deviation Mrs. Jones 89 1.9 Mrs. Rijo 82 1.4 Mr. Phan 73 3.4 Mrs. Scott 90 6.1 Which statement is most likely to be true? The scores of Mrs. Scott's class are the closest to the class mean. The scores of Mr. Phan's class are the closest to the class mean. The scores of Mrs. Jones's class are the closest to the class mean. The scores of Mrs. Rijo's class are the closest to the class mean.
Added by Edward B.
Step 1
We are given the mean test scores and standard deviations for four English classes. We need to determine which class has scores that are closest to the class mean. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Victor Salazar and 88 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The mean scores for students in a statistics course (by major) are shown below. What is the mean score for the class? 9 engineering majors: 90 5 math majors: 94 13 business majors: 76 The class's mean score is________ (Type an integer or a decimal rounded to two decimal places as needed.)
Qudsiya A.
The following are the means and standard deviations of some well-known standardized tests, referred to as Test A, Test B, and Test C. All three yield normal distributions. Test Mean Standard Deviation Test A 500 100 Test B 100 15 Test C 60 10 (i) A score of 325 on Test A corresponds to what score on Test C? A score of 640 on Test A corresponds to what score on Test B? (ii) The teacher told a student that he had scored so high on Test A that only 2 people out of 100 would score higher. What was the student's score on Test A?
Joshua A.
The mean number of English courses taken in a two–year time period by male and female college students is believed to be about the same. An experiment is conducted and data are collected from 29 males and 16 females. The males took an average of three English courses with a standard deviation of 0.8. The females took an average of four English courses with a standard deviation of 1.0. Are the means statistically the same?
Hypothesis Testing with Two Samples
Two Population Means with Unknown Standard Deviations
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD