(c) Consider a hypothesis test about two proportions, Ho: P1 = P2 versus Ha: pi # p2. If the alternative hypothesis Ha is true, increasing the size of the two samples would tend to the absolute value of the test statistic and the p-value. The two blanks should be (i) increase; increase (ii) increase; decrease (iii) decrease; increase (iv) decrease; decrease

When testing Ho: p = .30 vs Ha: p > .30, the data shows 17 successes out of 50 trials. Compute the test statistic.

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: V p2 Но: р1 that p1 and ul represent the proportion and mean for women and p2 and µ2 represent the proportion and mean for men.) vV (please enter a decimal and note H1: p1 p2 vv (Please enter a decimal) b. The test statistic -1.198 X (please show your answer to 3 decimal places.) c. The p-value = 0.2309 (Please show your answer to 4 decimal places.) d. The p-value is >v e. Based on this, we…

Zenon decided to Investigate whether students at his school prefer name-brand potato chips to generic potato chips. He randomly selected 50 of the 400 students at his school and asked each student to try both types of chips. Zenon wants to perform a test of H0: P = 0.5 versus Ha: P > 0.5, where p = the true proportion of students at his school who prefer name-brand chips. A. Can the observations In the sample be viewed as Independent? Justify your answer. B. Is the sampling distribution of p approximately Normal? Explain your reasoning.