An article in IEEE International Symposium onElectromagnetic Compatibility (Vol. 2, 2002, pp. 667–670)describes the quantification of the absorption of electromagneticenergy and the resulting thermal effect from cellular phones. Theexperimental results were obtained from in vivo experimentsconducted on rats. The arterial blood pressure values (mmHg) forthe control group (8 rats) during the experiment are X1 = 90,s1 = 5 and for the test group (9 rats)are X2 = 115,s2 = 10.
(a) Is there evidence to support the claim thatthe test group has higher mean blood pressure? Assume that bothpopulations are normally distributed but the variances are notequal. Answer this question by finding the P-value forthis test.
The test group has ( higher OR the same ORsmaller)Â Â mean blood pressure, since P-value (> 0.05 OR < 0.05)
(b) Calculate 95% one sided CI to answer theclaim in (a). Round your answer to 1 decimalplace.
μ1 - μ2 ≤ -------
