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. C. The students' test scores were independent of one another. O D. None of the requirements are satisfied. c) Use the classical approach at the a = 0.10 level of significance to find the critical value and test the hypotheses. Identify the test statistic. to = 1.53 (Round to two decimal places as needed.) Identify the critical value. Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) O A. ta O B. ta/2 = Click to select and enter 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 d) below. Click the icon to view the table of critical t-values. C. The students' test scores were independent of one another. O D. None of the requirements are satisfied. c) Use the classical approach at the a = 0.10 level of significance to find the critical value and test the hypotheses. Identify the test statistic. to = 1.53 (Round to two decimal places as needed.) Identify the critical value. Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) O A. ta O B. ta/2 = Click to select and enter your answer(s) and then click Check Answer.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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.
C. The students' test scores were independent of one another.
D. None of the requirements are satisfied.
c) Use the classical approach at the a = 0.10 level of significance to find the critical value and test the hypotheses. Identify the test statistic.
to =
1.53 (Round to two decimal places as needed.)
Identify the critical value. Select the correct choice below and fill in the answer box within your choice.
(Round to two decimal places as needed.)
A. ta
O B. ta/2 =
Click to select and enter your answer(s) and then click Check Answer.
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