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A random sample of ny 16 communities in western Kansas gave the folliowing information for people under 25 years of age X: Rate of hay fever per 1000 population for people under 25 99 91 119 129 92 123 112 93 125 95 125 117 97 122 127 88 Arandom sample of ny 14 regions in western Kansas gave the following information for people over 50 years old. * Rate of hay fever per 1000 population for people over 50 94 108 100 97 111 88 110 79 115 10o es 114 85 96 A USE SALT OUse a calculator to calculate , and (Rund your answers to four decimal places) Asume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group ever 50 has a lower cate ot hay fever Use 0.05. (a) what is the level of significance State the nu and aternate bypotheses

A random sample of ny 16 communities in western Kansas gave the folliowing information for people under 25 years of age X: Rate of hay fever per 1000 population for people under 25 99 91 119 129 92 123 112 93 125 95 125 117 97 122 127 88 Arandom sample of ny 14 regions in western Kansas gave the following information for people over 50 years old. * Rate of hay fever per 1000 population for people over 50 94 108 100 97 111 88 110 79 115 10o es 114 85 96 A USE SALT OUse a calculator to calculate , and (Rund your answers to four decimal places) Asume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group ever 50 has a lower cate ot hay fever Use 0.05. (a) what is the level of significance State the nu and aternate bypotheses

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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 ny 16 communities in western Kansas gave the following information for people under 25 years of age. X: Rate of hay fever per 1000 population for people under 25 119 129 92 123 112 93 125 95 125 117 97 122 127 88 A random sample of n 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 94 108 100 97 111 88 110 79 115 100 80 114 85 96 A USE SALT (1) Use a calculator to calculate x, 1, 2, and s2. (Rqund your answers to four decimal places.) () 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 a0.05. (a) what is the level of significance? State the null and altermate bypotheses. Ho: H P H P2
Transcribed Image Text:A random sample of ny 16 communities in western Kansas gave the following information for people under 25 years of age. X: Rate of hay fever per 1000 population for people under 25 119 129 92 123 112 93 125 95 125 117 97 122 127 88 A random sample of n 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 94 108 100 97 111 88 110 79 115 100 80 114 85 96 A USE SALT (1) Use a calculator to calculate x, 1, 2, and s2. (Rqund your answers to four decimal places.) () 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 a0.05. (a) what is the level of significance? State the null and altermate bypotheses. Ho: H P H P2
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