MAT-274 Inferential Statistics
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You suspect that among fraternal twins born across the United States, the second-born twin has a higher resting heart rate from ages 0-2 years. Your instructor will provide an Excel sheet containing resting heart rate data (in beats per minute) for 129 pairs of fraternal twins, measured at age 1 year. You will be addressing the following areas, including relevant calculations and explanations; see the assignment style guide for details about what to consider in your responses:
(1)Consider how your data is obtained.
(2)Select an appropriate hypothesis test.
(3)Describe your hypothesis in mathematical and nonmathematical terms.
(4)Using your Excel sample data, complete the relevant hypothesis test calculations.
(5)Make a formal decision on your null hypothesis.
(6)Using your Excel sample data, complete the relevant confidence interval calculations.
(7)Discuss how to interpret your confidence interval.
(8)Consider the effects of increasing the sample size.
(9)Consider confounding variables
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