A survey of Ohio University students was conducted to determine
if there was a particular Green that was desired by students to
live on. A sample of students responses are reproduced below. Do
students prefer a particular Green? Use critical value =
5.99.
West Green South
Green East
Green
30 60 77
What is the calculated chi-squared value?
A survey of Ohio University students was conducted to determine if there was a particular Green...
A survey of university students was conducted and found that students spend 2 hours per class hour studying. A Teacher at your school wants to determine whether the time students spend at your school is significantly different from the two hours. A random sample of 15 Statistics Students is carried out and the findings report an average of 1.75 hours with a standard deviation of 0.24 hours. Test the 5% level of significance. a. Critical value of t = 1.761....
A survey conducted five years ago by the health center at a university showed that 5.9% of the students smoked cigarettes at the time. This year a new survey was conducted on a random sample of 600 students from this university, and it was found that 33 of them smoke cigarettes. Test the claim that the percentage of students who smoke cigarettes at this university is less than it was five years ago. Use a significance level of 0.02. a....
4. (18 points) A University conducted a survey of its recent graduates to collect demo- graphic and health information for future planning purposes as well as to assess stu- dents' satisfaction with their undergraduate experiences. The survey revealed that a substantial proportion of students were not engaging in regular exercise, many felt their nutrition was poor and a substantial number were smoking. In response to a question on regular exercise, 60% of all graduates reported getting no regular exercise, 25%...
statistic stuff A university had conducted a survey to recognize the student attitude towards a proposed change in dormitory regulations: allow undergraduates of opposite sexes to share a room. In a random sample of 350 undergraduate students, 186 were males and 164 were females. The results showed that 129 of the male students and 94 of the female students supported the change. (a) Construct a contingency table for the data from this survey. (b) The university wants to know if...
In a study of binge drinking among undergraduates at Ohio University, a researcher was interested in gender differences as related to binge drinking and to drinking-related arrests. She wanted to know two things: (a) Is there a significant relationship between gender and binge drinking (as defined by 5 or more drinks at one sitting), and (b) Is there a significant relationship between gender and drinking-related arrests? A random sample of males and females were asked about their experiences with binge...
8. Page 4 of 8 A survey conducted five years ago by the health center at a university showed that 5.9% of the students smoked cigarettes at the time. This year a new survey was conducted on a random sample of 600 students from this university, and it was found that 33 of them smoke cigarettes. Test the claim that the percentage of students who smoke cigarettes at this university is less than it was five years ago. Use a...
In a national survey substance abuse conducted by the University of Michigan, 5.1% of 1,100 respondents who were full-time college students reported daily or near-daily use of marijuana - defined as 20 or more occasions of use in the prior 30 days. a. What is the population being studied in this survey? b. Is the underlined value a parameter or statistic? c. What is the sample? Ul 51% of 1,100 respondents who were full-time college students reported daily or near-daily...
School of Health Professions at the University of Missouri conducted a survey on 15 students asking whether they would like the school to offer a free Statistics program, counted the number of 'yes' answers, and recorded the sample proportion. 14 out of 15 students responded 'yes'. They repeated this 100 times and build a distribution of sample means. Would you expect the shape of this distribution to be symmetric, right skewed, or left skewed? Explain your reasoning. (Note that the...
A survey was conducted two years ago asking college students their top motivations for using a credit card. The percentages are shown in the table to the right. Also shown in the table is the observed frequency for these motivations from a current random sample of college students who use a credit card. Complete parts a through c below. Response Old Survey % New Survey Frequency, f Rewards 2727% 112112 Low rates 2323% 9797 Cash back 2222% 109109 Discounts...
A survey was conducted two years ago asking college students their top motivations for using a credit card. The percentages are shown in the table to the right. Also shown in the table is the observed frequency for these motivations from a current random sample of college students who use a credit card. Complete parts a through c below. Response Old Survey % New Survey Frequency, f Rewards 29% 112 Low Rates 23% 96 Cash back 21% 109 Discounts 8%...