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 = 3.14 (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=

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part c

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 = 3.14 (Round to two decimal places as needed.)
Identify the critical value. Select the correct choice below and fill in the answer box within
(Round to two decimal places as needed.)
your choice.
O A. ta =
B. ta/2=
Click to select and enter your answer(s) and then click Check Answer.
Transcribed Image Text: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 = 3.14 (Round to two decimal places as needed.) Identify the critical value. Select the correct choice below and fill in the answer box within (Round to two decimal places as needed.) your choice. O A. ta = 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 23 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 200 students who completed this core set of courses results in a mean
math score of 23.8 on the college entrance exam with a standard deviation of 3.6. Do these results suggest that students who complete the core curriculum are ready for college-level
mathematics? That is, are they scoring above 23 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.
The appropriate null and alternative hypotheses are Ho: u
23 versus H;:
23
%3D
>
b) Verify that the requirements to perform the test using the t-distribution are satisfied. Check all that apply.
A. The students' test scores were independent of one another.
B. The sample size is larger than 30.
C. The students were randomly sampled.
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.
Click to select and enter your answer(s) and then click Check Answer.
Transcribed Image Text:A college entrance exam company determined that a score of 23 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 200 students who completed this core set of courses results in a mean math score of 23.8 on the college entrance exam with a standard deviation of 3.6. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 23 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. The appropriate null and alternative hypotheses are Ho: u 23 versus H;: 23 %3D > b) Verify that the requirements to perform the test using the t-distribution are satisfied. Check all that apply. A. The students' test scores were independent of one another. B. The sample size is larger than 30. C. The students were randomly sampled. 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. Click to select and enter your answer(s) and then click Check Answer.
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