A random sample of n1 = 16 communities in western Kansas gave the following information for people under 25 years of age. x1:   Rate of hay fever per 1000 population for people under 25 99 92 119 129 94 123 112 93 125 95 125 117 97 122 127 88 A random sample of n2 = 14 regions in western Kansas gave the following information for people over 50 years old. x2:   Rate of hay fever per 1000 population for people over 50 93 108 100 95 111 88 110 79 115 100 89 114 85 96   (i) Use a calculator to calculate x1, s1, x2, and s2. (Round your answers to four decimal places.)

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