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Determining the appropriate statistical approach

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Reference no: EM132418168

Problem: A study was conducted to determine whether the mean braking distance of four-cylinder cars is greater than the mean braking distance of six-cylinder cars. A random sample of 20 four cylinder cars and a random sample of 20 six-cylinder cars were obtained, and the braking distances were measured. 

Required:

(a) What would be the appropriate hypothesis test for this analysis? 

(i) T-test for two independent samples 

(ii) T-test for dependent samples 

(iii) Z-test for population mean 

(iv) Correlation 

(b) Explain the rationale for your selection in (a). Specifically, why would this be the appropriate statistical approach?

Reference no: EM132418168

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