Quiz: Chapter 9 Two-Samples Quiz 00:41:26 Submit Quiz This Quiz: 15 pts possible

Question

Quiz: Chapter 9 Two-Samples Quiz 00:41:26 Submit Quiz This Quiz: 15 pts possible Question Help * A random sample of students at a college reported what they believed to be their heights in inches Then the students measured each others' heights in centimeters, without shoes. The data provided are for the men, with their beleved heights converted from inches to centimeters Assume that condnions for 1-tests hold. Complete parts a and b below Round to three decimal places as needed.) | berepeted pothesis tat the means are not the same Use a significance level of 0.05 Determine th Psference be the population mean difference between measured and belileved height, in centimeters. Choose the comect answer below Data Tabe Full Data Set Centimeters Centimeters Centimeters 2 delete

Explanation / Answer

The statistical software output for this problem is:

Paired T confidence interval:
D = 1 - 2 : Mean of the difference between Centimeter (Measured) and Centimeter (Believed)
95% confidence interval results:

Hypothesis test results:

Hence,

a) 95% confidence interval: (-2.145, 1.427)

Does; cannot

b) Hypotheses: Option C is correct.

t = -0.43

P - value = 0.673

Conclusion: Option D is correct.

Difference Mean Std. Err. DF L. Limit U. Limit Centimeter (Measured) - Centimeter (Believed) -0.35866667 0.8327704 14 -2.1447815 1.4274482

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