The director of student services at Oxnard College is interested in whether women are just as likely to attend orientation as men before they begin their coursework. A random sample of freshmen at Oxnard College were asked what their gender is and whether they attended orientation. The results of the survey are shown below: Data for Gender vs. Orientation Attendance Women Men Yes 355 395 No 247 239 What can be concluded at the a = 0.01 level of significance? For this study, we should use z-test for the difference between two population proportions a. The null and alternative hypotheses would be: Ho: p1 v D2 that p1 and ul represent the proportion and mean for women and p2 and µ2 represent the proportion and vv (please enter a decimal and note mean for men.) H1: p1 p2 vv (Please enter a decimal) b. The test statistic z v 0.61 (please show your answer to 3 decimal places.) c. The p-value =0.2309 V (Please show your answer to 4 decimal places.) d. The p-value is >vV a e. Based on this, we should fail to reject the null hypothesis. of f. Thus, the final conclusion is that ... O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the population proportion of freshmen women at Oxnard College who attend orientation is different from the population proportion of freshmen men at Oxnard College who attend orientation. O The results are statistically insignificant at a = 0.01, so there is insufficient evidence to conclude that the population proportion of freshmen women at Oxnard College who attend orientation is different from the population proportion of freshmen men at Oxnard College who attend orientation. O The results are statistically insignificant at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of freshmen women at Oxnard College who attend orientation is the same as the population proportion of freshmen men at Oxnard College who attend orientation. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the proportion of the 602 freshmen women who attended orientation is different from the proportion of the 634 freshmen men who attended orientation.

The director of student services at Oxnard College is interested in whether women are just as likely to attend orientation as men before they begin their coursework. A random sample of freshmen at Oxnard College were asked what their gender is and whether they attended orientation. The results of the survey are shown below: Data for Gender vs. Orientation Attendance Women Men Yes 355 395 No 247 239 What can be concluded at the a = 0.01 level of significance? For this study, we should use z-test for the difference between two population proportions a. The null and alternative hypotheses would be: Ho: p1 v D2 that p1 and ul represent the proportion and mean for women and p2 and µ2 represent the proportion and vv (please enter a decimal and note mean for men.) H1: p1 p2 vv (Please enter a decimal) b. The test statistic z v 0.61 (please show your answer to 3 decimal places.) c. The p-value =0.2309 V (Please show your answer to 4 decimal places.) d. The p-value is >vV a e. Based on this, we should fail to reject the null hypothesis. of f. Thus, the final conclusion is that ... O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the population proportion of freshmen women at Oxnard College who attend orientation is different from the population proportion of freshmen men at Oxnard College who attend orientation. O The results are statistically insignificant at a = 0.01, so there is insufficient evidence to conclude that the population proportion of freshmen women at Oxnard College who attend orientation is different from the population proportion of freshmen men at Oxnard College who attend orientation. O The results are statistically insignificant at a = 0.01, so there is statistically significant evidence to conclude that the population proportion of freshmen women at Oxnard College who attend orientation is the same as the population proportion of freshmen men at Oxnard College who attend orientation. O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude that the proportion of the 602 freshmen women who attended orientation is different from the proportion of the 634 freshmen men who attended orientation.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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