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Use the following information to answer the next three questions. Civil engineers collected data from one...

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Basic Math

Use the following information to answer the next threequestions. Civil engineers collected data from one area of Calgaryon the amount of salt (in tons) used to keep highways drivableduring a snowstorm. The amount of salt for n=10 snowstorms were asfollows: 1111, 2215, 1573, 2813, 2815, 2126, 854, 3965, 1819, 776.Find a 95% confidence interval for the true population mean amountof salt required in a snowstorm.

1) What is the margin of error for this CI?

2) Lower bound ?

3) Upper bound?

Answer & Explanation Solved by verified expert
4.3 Ratings (775 Votes)
For finding confidence interval first we need to find mean andstandard deviationMean CalculationMean Sum of all termsNo of TermsSum of all terms 1111 2215 1573 2813 2815 2126 854 3965 1819 776Sum of all terms    See Answer
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