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Use the Following Information for Questions:
Data Were Collected by Giving

Question 120

Multiple Choice

Use the following information for questions:
Data were collected by giving a survey to a random sample of students at a university. One question asked was: "Do you believe in extraterrestrial life?"Here is a comparison of the proportions of males and females that said "yes":
 Use the following information for questions: Data were collected by giving a survey to a random sample of students at a university. One question asked was:  Do you believe in extraterrestrial life? Here is a comparison of the proportions of males and females that said  yes :      Subscripts in these questions are 1 = females, 2 = males. -Suppose we wish to know if females at the university are less likely to believe in extraterrestrial life than males. What are the appropriate null and alternative hypotheses? A)  H<sub>0</sub>:  \mu <sub>1</sub> -  \mu <sub>2</sub> = 0 and H<sub>a</sub>:  \mu <sub>1</sub> -  \mu <sub>2</sub> < 0 B)  H<sub>0</sub>:  \mu <sub>1</sub> -  \mu <sub>2</sub> < 0 and H<sub>a</sub>:  \mu <sub>1</sub> -  \mu <sub>2</sub> = 0 C)  H<sub>0</sub>: p<sub>1</sub> - p<sub>2</sub> < 0 and H<sub>a</sub>: p<sub>1</sub> - p<sub>2</sub> = 0 D)  H<sub>0</sub>: p<sub>1</sub> - p<sub>2</sub> = 0 and H<sub>a</sub>: p<sub>1</sub> - p<sub>2</sub> < 0
Subscripts in these questions are 1 = females, 2 = males.
-Suppose we wish to know if females at the university are less likely to believe in extraterrestrial life than males. What are the appropriate null and alternative hypotheses?


A) H0: μ\mu 1 - μ\mu 2 = 0 and Ha: μ\mu 1 - μ\mu 2 < 0
B) H0: μ\mu 1 - μ\mu 2 < 0 and Ha: μ\mu 1 - μ\mu 2 = 0
C) H0: p1 - p2 < 0 and Ha: p1 - p2 = 0
D) H0: p1 - p2 = 0 and Ha: p1 - p2 < 0

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