Maurice Tutor

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Category > Computer Science Posted 19 Sep 2017 My Price 7.00

western Kansas

Medical: Hay Fever 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

98

90

120

128

92

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

95

110

101

97

112

88

110

79

115

100

89

114

85

96

i. Use a calculator to verify that  width=, s1≈ 15.41,  width=, and s2≈ 11.57.

ii. Assume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group over 50 has a lower rate of hay fever? Use a = 0.05.

Answers

Maurice Tutor
(5)
Status NEW Posted 19 Sep 2017 10:09 AM My Price 7.00

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