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

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Psychology

Dr. Vegapunk thinks that watching anime (Japanese animatedshows) decreases social skills in college students. To test this,Dr. Vegapunk randomly selected 30 brooklyn college students andassigned them to watch an episode of anime everyday for a week.After the week, each of the students answered a questionnaire abouttheir social skills. The results showed that the sample had a meansocial skills score of 7.3 and a standard deviation of 2.4. Aprevious study showed that the overall population of brooklyncollege students had a mean social skills score of 6.2, but thestandard deviation was not reported. Dr. Vegapunk decides to use analpha 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?

f) what should he conclude?

Answer & Explanation Solved by verified expert
4.2 Ratings (788 Votes)
a paired sample ttest The paired sample ttest sometimes called the dependent sample ttest is a statistical procedure used to determine whether the mean difference between two sets of observations is zero In a paired sample ttest each subject or entity is measured twice resulting in pairs of observations Common applications of the paired sample ttest include    See Answer
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