2. 210 points Previous Answers Devore State 8.E 034 My Note A stati.docx

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2. 2/10 points Previous Answers Devore State 8.E 034 My Note: A statistical program is recommended. The following observations are on stopping distance (ft) of a particular truck at 20 mph under specified experimental conditions. 32.1 30.8 31.6 30.4 31.0 31.9 The report states that under these conditions, the maximum allowable stopping distance is 30. A normal probability plot validates the assumption that stopping distance is normally distributed. (a) Does the data suggest that true average stopping distance exceeds this maximum value? Test the appropriate hypotheses using a = 0.01. State the appropriate hypotheses. Hou 30 Hi = 30 Ho: u = 30 # VI N H, u = 30 Ett M +30 Ho: = 30 H: > 30 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your p. value to three decimal places.) = 4.40 P-value = What can you conclude? Do not reject the null hypothesis. There is sufficient evidence to conclude that the true average stopping distance does exceed 30 ft. Reject the null hypothesis. There is not
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