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# Answer to Question #18403 in Statistics and Probability for ADANE HAILU HERUT

Question #18403
3. Suppose you are concerned about the amount of violence on TV. You decide to randomly select 10 TV programs, watch them, and count the number of &ldquo;violent scenes&rdquo; in each. Here is the data you collected: 32 12 20 10 4 18 25 26 17 14. Is there evidence that the (claim) number of &ldquo;violent scenes&rdquo; is at least 21 scenes?
1
2012-11-13T10:47:46-0500
H0: N<=21
At first, standard deviation ofa sample s=8.34 sample mean is 17.8 statistic is
t=(17.8-21)/(8.34/sqrt(10))=-1.21. At a confidence level of 95% there is
not enough evidence to reject H0.

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26.11.12, 15:46

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