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 89 119 130 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 93 111 99 96 110 88 110 79 115 100 89 114 85 96 A) What is the value of the sample test statistic? (Test the difference ?1 − ?2. Round your answer to three decimal places.)
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 89 119 130 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 93 111 99 96 110 88 110 79 115 100 89 114 85 96 A) What is the value of the sample test statistic? (Test the difference ?1 − ?2. Round your answer to three decimal places.)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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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 | 89 | 119 | 130 | 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 | 111 | 99 | 96 | 110 | 88 | 110 |
79 | 115 | 100 | 89 | 114 | 85 | 96 |
A) What is the value of the sample test statistic? (Test the difference ?1 − ?2. Round your answer to three decimal places.)
B) Find (or estimate) the P-value.
a) P-value > 0.250
b) 0.125 < P-value < 0.250
c) 0.050 < P-value < 0.125
d) 0.025 < P-value < 0.050
e) 0.005 < P-value < 0.025
f) P-value < 0.005
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