Conduct a Full Hypothesis Test and Determine If the Given $\sigma = 7.2$

question 12

Multiple Choice

Conduct a full hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Round all amounts and standard scores to two decimal places.
-In one city, the average amount of time that tenth-graders spend watching television each week is 22.4 hours. the principal of Birchwood High School believes that at his school, tenth-graders watch less television. For a
Sample of 32 tenth-graders from Birchwood High School, the mean amount of time spent watching television per week was 20.2 hours. Test whether the claim that for all tenth-graders at Birchwood High School, the mean
Amount of time spent watching television per week is less than the city average of 22.4 hours is supported or not supported. Assume that $\sigma = 7.2$
Hours.

• A)not supported
• B)supported

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