A college entrance exam company determined that a score of 21 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean math score of 21.4 on the college entrance exam with a standard deviation of 3.2. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 21 on the math portion of the exam? Complete parts a) through below. Click the icon to view the table of critical t-values. a) State the appropriate null and alternative hypotheses. Fill in the correct answers below. = 21 versus H,: 21. The appropriate null and alternative hypotheses are Ho: u b) Verify that the requirements to perform the test using the t-distribution are satisfied. Check all that apply. O A. The students were randomly sampled. O B. The sample size is larger than 30. O C. The students' test scores were independent of one another. O D. None of the requirements are satisfied. Click to select your answer(s) and then click Check Answer.
A college entrance exam company determined that a score of 21 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean math score of 21.4 on the college entrance exam with a standard deviation of 3.2. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 21 on the math portion of the exam? Complete parts a) through below. Click the icon to view the table of critical t-values. a) State the appropriate null and alternative hypotheses. Fill in the correct answers below. = 21 versus H,: 21. The appropriate null and alternative hypotheses are Ho: u b) Verify that the requirements to perform the test using the t-distribution are satisfied. Check all that apply. O A. The students were randomly sampled. O B. The sample size is larger than 30. O C. The students' test scores were independent of one another. O D. None of the requirements are satisfied. Click to select your answer(s) and then click Check Answer.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:A college entrance exam company determined that a score of 21 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the
company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean
math score of 21.4 on the college entrance exam with a standard deviation of 3.2. Do these results suggest that students who complete the core curriculum are ready for college-level
mathematics? That is, are they scoring above 21 on the math portion of the exam? Complete parts a) through d) below.
Click the icon to view the table of critical t-values.
a) State the appropriate null and alternative hypotheses. Fill in the correct answers below.
21 versus H: H
21.
The appropriate null and alternative hypotheses are Ho: u
b) Verify that the requirements to perform the test using the t-distribution are satisfied. Check all that apply.
A. The students were randomly sampled.
B. The sample size is larger than 30.
C. The students' test scores were independent of one another.
D. None of the requirements are satisfied.
?
Click to select your answer(s) and then click Check Answer.
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