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need help finding 95% CI and test statistic t The vuvuzela captured international attention during the 201C! World Cup in South Africa. In its modern

need help finding 95% CI and test statistic t

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The vuvuzela captured international attention during the 201C! World Cup in South Africa. In its modern incarnation, the vuvuzela is a plastic horn, about 65 cm long, that can produce a soqu loud enough to cause permanent hearing damage. Blowing a vuvuzela requires a fair amount of air pressure, and Lai et al. (201 l) were concerned that vuvuzela use by anyone carrying a pathogen would cause airborne contagious to be spread broadly through a crowd. They tested this idea with an experiment that compared the concentration of aerosol droplets or particles produced by people blowing vuvuzelas to that produced by the same people shouting instead. The data, measured as thousands of particles per liter, for eight individuals are given in the table. Take the log transformation of each value before nding differences. Then calculate a 95% condence interval for the mean difference in log particle concentration between vuvuzelas and shouting. Dene the difference as the transformed data for vuvuzela minus the transformed data for shouting. Give your answer as an interval in the form (lower bound, upper bound). Round each bound to two decimal places. Use Statistical Table C if necessary. 95% condence interval: : Particle concentration (1000s/liter) Person Vuvuzela Shouting 606 6.1 1077 6.4 220 1.3 396 1.8 1197 6.0 178 1.5 645 2.9 944 2.9Carry out an appropriate test for a mean difference in log particle concentration between the two forms of cheering. Determine the test statistic f for the test. Give your answer to two decimal places. 1 =person vuvuzelaParticleConcentration shoutingParticleConcentration 606 6.1 1077 6.4 220 1.3 396 1.8 1197 6 178 1.5 645 2.9 944 2.9

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