9.2/4Identify the test statisticp-value Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Statistics from a study are also provided for IQ scores for a random sample of subjects with high lead levels. Assume the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below.**Part (a):**- **Task:** Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels are higher than the mean for subjects with high lead levels.- **Hypotheses:** - Assume population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. - Options: - A. \( H_0: \mu_1 \neq \mu_2 \) and \( H_1: \mu_1 > \mu_2 \) - B. \( H_0: \mu_1 = \mu_2 \) and \( H_1: \mu_1 \neq \mu_2 \) - C. \( H_0: \mu_1 = \mu_2 \) and \( H_1: \mu_1 > \mu_2 \) - D. \( H_0: \mu_1 \leq \mu_2 \) and \( H_1: \mu_1 > \mu_2 \)**IQ Scores Data Table:**- **Medium Lead Level:** - Scores: 72, 88, 92, 85, 89, 97, 83, 92, 98, 111, 91- **High Lead Level:** - Sample size (\( n_2 \)): 11 - Mean (\( \bar{x}_2 \)): 88.187 - Standard deviation (\( s_2 \)): 9.525This data can be used to perform hypothesis testing to evaluate whether medium lead levels impact mean IQ scores differently compared to high lead levels.

Given that; n2 = 11 , x(bar) 2 = 88.187 , s2 = 9.525 By using two sample mean t test we get…

Answered: Listed in the data table are IQ scores…

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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