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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% -2 -1 0 p= Ex: 1.234 1 2 3 t = Ex: 1.234

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% -2 -1 0 p= Ex: 1.234 1 2 3 t = Ex: 1.234

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
Section10.4: Distributions Of Data
Problem 19PFA
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AT 240: Applied Statistics home > s tests for the difference between two population means EzyBooks ca 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 Southern Northern 155.056 168.889 345.938 560.928 Observations Pooled Variance 453.433 Hypothesized Mean Difference df 1.949 P= p= Ex: 1.234 P(T<-t) one-tail 0.030 t Critical one-tail P(T<=t) two-tail -1 2 3 t Critical two-tail Confidence Level t Ex 1 234 n= Ex 9 Degrees of freedom: df Point estimate for the southern part of the county Ex 1.234 1 Point estimate for the northern part of the county 2 = 77 0 Haral
Transcribed Image Text:AT 240: Applied Statistics home > s tests for the difference between two population means EzyBooks ca 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 Southern Northern 155.056 168.889 345.938 560.928 Observations Pooled Variance 453.433 Hypothesized Mean Difference df 1.949 P= p= Ex: 1.234 P(T<-t) one-tail 0.030 t Critical one-tail P(T<=t) two-tail -1 2 3 t Critical two-tail Confidence Level t Ex 1 234 n= Ex 9 Degrees of freedom: df Point estimate for the southern part of the county Ex 1.234 1 Point estimate for the northern part of the county 2 = 77 0 Haral
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