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According to a newspaper article, teens watch on average 315 minutes of television a week. A...

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Statistics

According to a newspaper article, teens watch on average 315minutes of television a week. A concerned parent collected a randomsample of 12 individual teens to test the claim. The sample averagefor the number of minutes was 337. The sample standard deviationwas 55 minutes. With alpha = 0.1, is there enough evidence toreject the article's claim?


a) Is this a test that uses, z-scores, t-scores, or chi-squaredvalues?


b) Does this problem involve proportions?


c) What is(are) the critical value(s) for the problem?


d) What is the test value and which formula did you use? Theformulas are numbered.


e) Should the researcher reject the claim?

Answer & Explanation Solved by verified expert
4.0 Ratings (717 Votes)
a This test uses tscores as we are testing population mean    See Answer
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