[Solution Library] The following data give the speeds (in miles per hour) as measured by radar, of 10 cars traveling on an interstate highway. 66 72 62 68
Question: The following data give the speeds (in miles per hour) as measured by radar, of 10 cars traveling on an interstate highway.
66 72 62 68 76 74 65 78 67 69
Assuming that the speeds of all cars traveling on this highway have a normal distribution, construct a 90% confidence interval for the mean speed of all cars traveling on this highway.
Deliverable: Word Document 
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[See Solution] Write the appropriate null and alternative hypotheses
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![[Solved] Are the data statistically significant at](/images/solutions/MC-solution-library-47011.jpg "[Solved] Are the data statistically significant at the 1% significance")
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