Question

In: Psychology

Dr. Vegapunk thinks that watching anime (Japanese animated shows) decreases social skills in college students. To...

Dr. Vegapunk thinks that watching anime (Japanese animated shows) decreases social skills in college students. To test this, Dr. Vegapunk randomly selected 30 brooklyn college students and assigned them to watch an episode of anime everyday for a week. After the week, each of the students answered a questionnaire about their social skills. The results showed that the sample had a mean social skills score of 7.3 and a standard deviation of 2.4. A previous study showed that the overall population of brooklyn college students had a mean social skills score of 6.2, but the standard deviation was not reported. Dr. Vegapunk decides to use an alpha level of 0.05.

a) what test should he use?

b) what is the alternative hypothesis?

c) what is the null hypothesis?

d) what is the critical value?

e) what is the obtained statistic?

Solutions

Expert Solution

Hayet Jeridi answered 1 year ago
Next > < Previous

Related Solutions

Dr. Vegapunk thinks that watching anime (Japanese animated shows) decreases social skills in college students. To...
Dr. Vegapunk thinks that watching anime (Japanese animated shows) decreases social skills in college students. To test this, Dr. Vegapunk randomly selected 30 brooklyn college students and assigned them to watch an episode of anime everyday for a week. After the week, each of the students answered a questionnaire about their social skills. The results showed that the sample had a mean social skills score of 7.3 and a standard deviation of 2.4. A previous study showed that the overall...
10. In 2014, 12% of adults said they learned Japanese by watching anime and having the...
10. In 2014, 12% of adults said they learned Japanese by watching anime and having the subtitles inEnglish. A recent survey found that 156 of 800 adults said they learned Japanese by watching anime and having the subtitles in English. Test the claim to see if there is a differences from the12% in today’s era at a 0.05 level of significance.(For full credit need to draw the curve and shade the area) H0: H1: Test Stat: Conclusion:
Do female college students spend more time than male college students watching TV? This was one...
Do female college students spend more time than male college students watching TV? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent watching...
Do female college students spend more time than male college students watching TV? This was one...
Do female college students spend more time than male college students watching TV? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent watching...
Do female college students spend more time than male college students watching TV? This was one...
Do female college students spend more time than male college students watching TV? This was one of the questions investigated by the authors of an article. Each student in a random sample of 46 male students at a university in England and each student in a random sample of 38 female students from the same university kept a diary of how he or she spent time over a three-week period. For the sample of males, the mean time spent watching...
Dr. McDonald thinks that his group of earth science students is particularly special (in a good way)
Dr. McDonald thinks that his group of earth science students is particularly special (in a good way), and he is interested in knowing if their class average falls within the boundaries of the average score for the larger group of students who have taken earth science over the past 20 years. Because he has kept good records, he knows the means and standard deviations for both his group of 24 students and the larger group of 2000 past enrollees. Here...
11. A random sample of 50 college student students shows that the score of a College...
11. A random sample of 50 college student students shows that the score of a College Statistics is normally distributed with its mean, 83 and standard deviation, 7.5. Find 95 % confidence interval estimate for the true mean.
1. A random sample of 40 college student students shows that the score of a College...
1. A random sample of 40 college student students shows that the score of a College Statistics is normally distributed with its mean, 81 and standard deviation, 8.4. Find 99 % confidence interval estimate for the true mean.
A preliminary survey shows that 33% of college students smoke. In a class of 43 students,...
A preliminary survey shows that 33% of college students smoke. In a class of 43 students, what is the probability that more than 48% of the students smoke? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.) Probability
An investigator thinks that college students who pay for most of their own education study more...
An investigator thinks that college students who pay for most of their own education study more than college students whose parents pay for most of their education. He gathers information on students regarding who is paying the greater portion of their college bills in order to put them into groups (parents pay (P) or student pays (S)) and also on the number of hours they report studying per week. Choose the type of test you should use to test this...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT