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7. The LASERI data in the ICSNP library is a data frame with 32 measurements made on each of 223 healthy Finnish subjects. The subjects

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7. The LASERI data in the ICSNP library is a data frame with 32 measurements made on each of 223 healthy Finnish subjects. The subjects were monitored While in a supine position and then again With their heads elevated on a motorized table. We Will concentrate on four measurements: average heart rate in the tenth minute of rest (HRTl); average heart rate in the second minute during the tilt (HRT2); average heart rate in the fifth minute during the tilt (HRT3); and average heart rate in the fth minute after the tilt (HRT4). (a) Examine the data for marginal and multivariate normality. Identify any remarkable outliers or abnormalities. b Appl the Hotellin ' test to examine Whether the multivariate normal means are the same. y g Please make sure the data satisfy the assumptions of the Hotelling test. If necessary, please perform an appropriate way to x the

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