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rice in the southern part of the county and would like to test the claim. A simple random rices is taken from each region. The results are shown below. ean riance Oservations oled Variance pothesized Mean Difference tat T<=t) one-tail Critical one-tail Southern Northern 155.056 168.889 345.938 560.928 18 18 453.433 0 34 1.949 0.030 2.441 P = Ex:

rice in the southern part of the county and would like to test the claim. A simple random rices is taken from each region. The results are shown below. ean riance Oservations oled Variance pothesized Mean Difference tat T<=t) one-tail Critical one-tail Southern Northern 155.056 168.889 345.938 560.928 18 18 453.433 0 34 1.949 0.030 2.441 P = Ex:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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A real estate agent believes that the mean home price in the northern part of a county is higher than the mean price in the southern part of the county and would like to test the claim. A simple random sample of housing prices is taken from each region. The results are shown below. Mean Variance Observations Pooled Variance Hypothesized Mean Difference df t Stat P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail Confidence Level Southern Northern 155.056 168.889 345.938 560.928 18 18 453.433 0 34 1.949 0.030 2.441 0.060 2.728 99% n = Ex: 9 Degrees of freedom: df = -2 -1 0 Point estimate for the southern part of the county: s = Ex: 1.234 Point estimate for the northern part of the county: N = P = Ex: 1.234 2 t Ex: 1.234
Transcribed Image Text:A real estate agent believes that the mean home price in the northern part of a county is higher than the mean price in the southern part of the county and would like to test the claim. A simple random sample of housing prices is taken from each region. The results are shown below. Mean Variance Observations Pooled Variance Hypothesized Mean Difference df t Stat P(T<=t) one-tail t Critical one-tail P(T<=t) two-tail t Critical two-tail Confidence Level Southern Northern 155.056 168.889 345.938 560.928 18 18 453.433 0 34 1.949 0.030 2.441 0.060 2.728 99% n = Ex: 9 Degrees of freedom: df = -2 -1 0 Point estimate for the southern part of the county: s = Ex: 1.234 Point estimate for the northern part of the county: N = P = Ex: 1.234 2 t Ex: 1.234
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