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Calculate the test statistic and its p-value to test for a difference in the two population means. (Use Section 1 - Section 2. Rou

Calculate the test statistic and its p-value to test for a difference in the two population means. (Use Section 1 - Section 2. Rou

MATLAB: An Introduction with Applications
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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need z= and p-value=

**Analysis of Drinking Water Samples: Lead Levels** The table below summarizes analyses of drinking water samples from 100 homes in each of two different sections of a city. The data provide information on lead levels, measured in parts per million (ppm). | | Section 1 | Section 2 | |--------------------|-----------|-----------| | **Sample Size** | 100 | 100 | | **Mean** | 34.3 | 36.1 | | **Standard Deviation** | 6.0 | 6.1 | **Statistical Analysis:** Calculate the test statistic and its p-value to test for a difference in the two population means. (Use Section 1 - Section 2. Round your test statistic to two decimal places and your p-value to four decimal places.) - \( z = -2.09 \) - \( p\text{-value} = 0.0366 \) Note: The calculations appear incorrect as indicated by the red crosses next to the values entered. Re-evaluation is necessary to ensure accuracy.
Transcribed Image Text:**Analysis of Drinking Water Samples: Lead Levels** The table below summarizes analyses of drinking water samples from 100 homes in each of two different sections of a city. The data provide information on lead levels, measured in parts per million (ppm). | | Section 1 | Section 2 | |--------------------|-----------|-----------| | **Sample Size** | 100 | 100 | | **Mean** | 34.3 | 36.1 | | **Standard Deviation** | 6.0 | 6.1 | **Statistical Analysis:** Calculate the test statistic and its p-value to test for a difference in the two population means. (Use Section 1 - Section 2. Round your test statistic to two decimal places and your p-value to four decimal places.) - \( z = -2.09 \) - \( p\text{-value} = 0.0366 \) Note: The calculations appear incorrect as indicated by the red crosses next to the values entered. Re-evaluation is necessary to ensure accuracy.
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