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.### Table of Results:- **Southern Region:** - Mean: 155.056 - Variance: 345.938 - Observations: 18- **Northern Region:** - Mean: 168.889 - Variance: 560.928 - Observations: 18- **Pooled Variance:** 453.433- **Hypothesized Mean Difference:** 0- **Degrees of Freedom (df):** 34- **t Statistic:** 1.949- **P(T<=t) one-tail:** 0.030- **t Critical one-tail:** 2.441- **P(T<=t) two-tail:** 0.060- **t Critical two-tail:** 2.728- **Confidence Level:** 99%### Graph Explanation:The graph displays a normal distribution curve. There is a shaded area under the curve representing the p-value. The t-value is marked on the x-axis at the point where it occurs.- **p-value (p):** Enter p-value- **t-value (t):** Enter t-value### Calculations:- **n (Sample size):** 9- **Degrees of freedom:** Input - **Point estimate for the southern part of the county (x̄ₛ):** Enter value- **Point estimate for the northern part of the county (x̄ₙ):** Enter value

Answered: rice in the southern part of the county…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Listed below are the lead concentrations (in µg/g) measured in different Ayurveda medicines. Ayurveda is a traditional medical system commonly used in India. The lead concentrations listed here are from medicines manufactured in the United States. Assume that a simple random sample has been selected. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 14.0 µg/g. 5.98 5.50 20.54 3.03 6.46 Identify the null and alternative hypotheses. Ho: H 14 H₁: μ 14 (Type integers or decimals. Do not round.) Identify the test statistic. = (Round to two decimal places as needed.) 7.45 12.01 20.47 11.48 17.53 D S Vi I. (1,0) More
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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 Southern Northern 155.056 168.889 345.938 560.928 18 Pooled Variance 453.433 Hypothesized Mean Difference df 34 1949 t Stat P(T<=t) one-tail p= Ex: 1.234 0.030 2.441 0.060 t Critical one-tail P(T<=t) two-tail t Critical two-tail 2.728 2. Confidence Level 99% t = Ex: 1.234 n= Ex: 9 Degrees of freedom: df = Point estimate for the southern part of the county: 1 Ex: 1.234 Point estimate for the northern part of the county: 2 0耳_ 国 23 72°F
1st box is: Do not reject or Reject 2nd box is: do not provide or provide 3rd box is: greater than or the same as or different from or less than
What is the Test Statistic and P-Value?
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