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b. The test statistic 2.234 (please show your answer to 3 decimal places.)

b. The test statistic 2.234 (please show your answer to 3 decimal places.)

MATLAB: An Introduction with Applications
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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The test statistic is wrong. 

Only question  B 

Are freshmen psychology majors more likely to change their major before they graduate compared to freshmen business majors? 327 of the 605 freshmen psychology majors from a recent study changed their major before they graduated and 326 of the 682 freshmen business majors changed their major before they graduated. What can be concluded at the a = 0.01 level of significance? For this study, we should use z-test for a population proportion a. The null and alternative hypotheses would be: Ho: p1 p2 (please enter a decimal) H1: p1 p2 ) (Please enter a decimal) b. The test statistic v= 2.234 (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ?V a e. Based on this, we should Select an answer f. Thus, the final conclusion is that ... the null hypothesis. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the proportion of the 605 freshmen psychology majors who changed their major is greater than the proportion of the 682 freshmen business majors who change their major. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the population proportion of freshmen psychology majors who change their major is greater than the population proportion of freshmen business majors who change their major. O The results are statistically insignificant at a = 0.01, so there is insufficient evidence to conclude that the population proportion of freshmen psychology majors who change their major is greater than the population proportion of freshmen business majors who change their major. O The results are statistically insignificant at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of freshmen psychology majors who change their major is the same as the population proportion of freshmen business majors who change their major.
Transcribed Image Text:Are freshmen psychology majors more likely to change their major before they graduate compared to freshmen business majors? 327 of the 605 freshmen psychology majors from a recent study changed their major before they graduated and 326 of the 682 freshmen business majors changed their major before they graduated. What can be concluded at the a = 0.01 level of significance? For this study, we should use z-test for a population proportion a. The null and alternative hypotheses would be: Ho: p1 p2 (please enter a decimal) H1: p1 p2 ) (Please enter a decimal) b. The test statistic v= 2.234 (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ?V a e. Based on this, we should Select an answer f. Thus, the final conclusion is that ... the null hypothesis. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the proportion of the 605 freshmen psychology majors who changed their major is greater than the proportion of the 682 freshmen business majors who change their major. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the population proportion of freshmen psychology majors who change their major is greater than the population proportion of freshmen business majors who change their major. O The results are statistically insignificant at a = 0.01, so there is insufficient evidence to conclude that the population proportion of freshmen psychology majors who change their major is greater than the population proportion of freshmen business majors who change their major. O The results are statistically insignificant at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of freshmen psychology majors who change their major is the same as the population proportion of freshmen business majors who change their major.
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