A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with u = 519. random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 525 with a standard deviation of 110. Complete parts (a) through (d) below. The teacher obtains (a) State the null and alternative hypotheses. Họ: H = 519, H,: P > 519 (b) Test the hypothesis at the a = 0.10 level of significance. Is a mean math score of 525 statistically significantly higher than 519? Conduct a hypothesis test using the P-value approach. Find the test statistic. 6= 2.31 (Round to two decimal places as needed.) Find the P-value. The P-value is 0.010. (Round to three decimal places as needed.) Is the sample mean statistically significantly higher? A. No, because the P-value is less than a = 0.10. B. No, because the P-value is greater than a = 0.10. C. Yes, because the P-value is greater than a = 0.10. D. Yes, because the P-value is less than a =0.10.
A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with u = 519. random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 525 with a standard deviation of 110. Complete parts (a) through (d) below. The teacher obtains (a) State the null and alternative hypotheses. Họ: H = 519, H,: P > 519 (b) Test the hypothesis at the a = 0.10 level of significance. Is a mean math score of 525 statistically significantly higher than 519? Conduct a hypothesis test using the P-value approach. Find the test statistic. 6= 2.31 (Round to two decimal places as needed.) Find the P-value. The P-value is 0.010. (Round to three decimal places as needed.) Is the sample mean statistically significantly higher? A. No, because the P-value is less than a = 0.10. B. No, because the P-value is greater than a = 0.10. C. Yes, because the P-value is greater than a = 0.10. D. Yes, because the P-value is less than a =0.10.
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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Transcribed Image Text:A math teacher claims that she has developed a review course that increases the scores of students on the math portion of a college entrance exam. Based on data from the administrator of the exam, scores are normally distributed with u = 519.
The teacher obtains a random sample of 1800 students, puts them through the review class, and finds that the mean math score of the 1800 students is 525 with a standard deviation of 110. Complete parts (a) through (d) below.
(a) State the null and alternative hypotheses.
Ho: H
519, Н: и
519
>
(b) Test the hypothesis at the a = 0.10 level of significance. Is a mean math score of 525 statistically significantly higher than 519? Conduct a hypothesis test using the P-value approach.
Find the test statistic.
= 2.31
(Round to two decimal places as needed.)
Find the P-value.
The P-value is 0.010.
(Round to three decimal places as needed.)
Is the sample mean statistically significantly higher?
A. No, because the P-value is less than a = 0.10.
B. No, because the P-value is greater than a = 0.10.
C. Yes, because the P-value is greater than a = 0.10.
D. Yes, because the P-value is less than a = 0.10.
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