A researcher wants known if teens who play video games are different from teens

Question

A researcher wants known if teens who play video games are different from teens in general in terms of their ability to focus on task, so she recruits a sample of 6 teens who are frequent video game players and measures how long they persist in trying to solve a difficult Teens in general usually keep at it for 10 minutes. Use the appropriate statistical test to determine whether the mean time on task for this sample of teens is significantly different from that observed among the population of teens in general. Choose the .01 level of significance. 12 14 11 10 15 11 teens who play video games significantly different teens in general in the length of time they focus on a task? YES No

Explanation / Answer

Null Hypothesis: mu = 10

Alternative Hypothesis: mu is not equal to 10

Variable N Mean StDev SE Mean 99% CI T P
time 6 12.167 1.941 0.792 (8.972, 15.361) 2.73 0.041

Conclusion: The estimated p-value is 0.041 and larger than 0.01 level of significance. Hence, we cant not accept the null hypothesis and conclude that the mean time of the task for the child who play video game is significantly different from normal childrens.

b) Ans: Yes.

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