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This question uses data on the birth weight (measured in grams) of infants born in 2019. Ône sample has data on the birth weight of infants whose mothers are nonsmokers, and a second sample has data on the birth weight of infants whose mothers are smokers. Use the provided Stata output to answer the following questions. The subscript N stands for nonsmokers and the subscript S stands for smokers 1. Provide a 99% confidence interval for the difference in mean birth weight between infants born to mothers who are nonsmokers and infants born to mothers who are smokers. Round all calculations and final answers to three decimal places. Lower bound= Upper bound= 2. Someone claims that infants born to mothers who are nonsmokers have an average birth weight more than 200 grams lower than infants born to mothers who are smokers. Test this hypothesis at the 5% significance level using the critical value approach. A. Select the null and alternative hypothesis from list below. Enter your answer as the letter only (eg., A) from the list below. Null hypothesis: Alternative hypothesis: B. What is the relevant t-statistic? Round all calculations and final answer to three decimal places. t= C. What is the conclusion? (Find the relevant critical value to reach your conclusion.) Enter your answer as the letter only (eg., A) from the list below. Conclusion=

This question uses data on the birth weight (measured in grams) of infants born in 2019. Ône sample has data on the birth weight of infants whose mothers are nonsmokers, and a second sample has data on the birth weight of infants whose mothers are smokers. Use the provided Stata output to answer the following questions. The subscript N stands for nonsmokers and the subscript S stands for smokers 1. Provide a 99% confidence interval for the difference in mean birth weight between infants born to mothers who are nonsmokers and infants born to mothers who are smokers. Round all calculations and final answers to three decimal places. Lower bound= Upper bound= 2. Someone claims that infants born to mothers who are nonsmokers have an average birth weight more than 200 grams lower than infants born to mothers who are smokers. Test this hypothesis at the 5% significance level using the critical value approach. A. Select the null and alternative hypothesis from list below. Enter your answer as the letter only (eg., A) from the list below. Null hypothesis: Alternative hypothesis: B. What is the relevant t-statistic? Round all calculations and final answer to three decimal places. t= C. What is the conclusion? (Find the relevant critical value to reach your conclusion.) Enter your answer as the letter only (eg., A) from the list below. Conclusion=

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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Q. Hạ: µN – µs > 200 R. H3: µN – µs < 200 S. Ha: µN – s = -200 T. Ha: µN – µs + -200 U. Ha: µN – µs > -200 V. Hạ: µN – µs < -200 W. None of the above Stata output: bysort smoker: sum birthweight -> smoker = 0 (sample of nonsmokers) Variable | Obs Mean Std. Dev. Min Max birthweightI 49 3279 57,8 3146 3405 -> smoker = 1 (sample of smokers) VariableI Obs Mean Std. Dev. Min Мак birthweight | 69.4 2866 3225 36 3060 invttail(34,0.005)=2.73 invttail (35,0.005)=2.72 invttail(36,0.005)=2.71 invttail(34,0.025)=2.03 invttail(35,0.025)=2.02 invttail (36,0.025)=2.01 invttail(34,0.05)=1.69 invttail (35,0.05)=1.68 invttail (36,0.05)=1.67 invttail(47,0.005)=2.69 invttail(48,0.005)=2.68 invttail(49,0.005)=2.67 invttail (47,0.025)=1.99 invttail(48,0.025)=1.98 invttail (49,0.025)=1.97 invttail (47,0.05)=1.65 invttail (48,0.05)=1.64 invttail(49,0.05)=1.63 invttail(83,0.005)=2.64 invttail (84,0.005)=2.63 invttail (85,0.005)=2.62 invttail(83,0.025)=1.95 invttail(84,0.025)=1.94 invttail(85,0.025)=1.93 invttail(83,0.05)=1.62 invttail(84,0.05)=1.61 invttail (85,0.05)=1.60
Transcribed Image Text:Q. Hạ: µN – µs > 200 R. H3: µN – µs < 200 S. Ha: µN – s = -200 T. Ha: µN – µs + -200 U. Ha: µN – µs > -200 V. Hạ: µN – µs < -200 W. None of the above Stata output: bysort smoker: sum birthweight -> smoker = 0 (sample of nonsmokers) Variable | Obs Mean Std. Dev. Min Max birthweightI 49 3279 57,8 3146 3405 -> smoker = 1 (sample of smokers) VariableI Obs Mean Std. Dev. Min Мак birthweight | 69.4 2866 3225 36 3060 invttail(34,0.005)=2.73 invttail (35,0.005)=2.72 invttail(36,0.005)=2.71 invttail(34,0.025)=2.03 invttail(35,0.025)=2.02 invttail (36,0.025)=2.01 invttail(34,0.05)=1.69 invttail (35,0.05)=1.68 invttail (36,0.05)=1.67 invttail(47,0.005)=2.69 invttail(48,0.005)=2.68 invttail(49,0.005)=2.67 invttail (47,0.025)=1.99 invttail(48,0.025)=1.98 invttail (49,0.025)=1.97 invttail (47,0.05)=1.65 invttail (48,0.05)=1.64 invttail(49,0.05)=1.63 invttail(83,0.005)=2.64 invttail (84,0.005)=2.63 invttail (85,0.005)=2.62 invttail(83,0.025)=1.95 invttail(84,0.025)=1.94 invttail(85,0.025)=1.93 invttail(83,0.05)=1.62 invttail(84,0.05)=1.61 invttail (85,0.05)=1.60
This question uses data on the birth weight (measured in grams) of infants born in 2019. Ône sample has data on the birth weight of infants whose mothers are nonsmokers, and a second sample has data on the birth weight of infants whose mothers are smokers. Use the provided Stata output to answer the following questions. The subscript N stands for nonsmokers and the subscript S stands for smokers 1. Provide a 99% confidence interval for the difference in mean birth weight between infants born to mothers who are nonsmokers and infants born to mothers who are smokers. Round all calculations and final answers to three decimal places. Lower bound= Upper bound= 2. Someone claims that infants born to mothers who are nonsmokers have an average birth weight more than 200 grams lower than infants born to mothers who are smokers. Test this hypothesis at the 5% significance level using the critical value approach. A. Select the null and alternative hypothesis from list below. Enter your answer as the letter only (eg., A) from the list below. Null hypothesis: Alternative hypothesis: B. What is the relevant t-statistic? Round all calculations and final answer to three decimal places. t= C. What is the conclusion? (Find the relevant critical value to reach your conclusion.) Enter your answer as the letter only (eg., A) from the list below. Conclusion= Possible answers for parts 2.A and 2.C. Enter your answer as the letter representing your choice only (eg., A): A. Accept Ho
Transcribed Image Text:This question uses data on the birth weight (measured in grams) of infants born in 2019. Ône sample has data on the birth weight of infants whose mothers are nonsmokers, and a second sample has data on the birth weight of infants whose mothers are smokers. Use the provided Stata output to answer the following questions. The subscript N stands for nonsmokers and the subscript S stands for smokers 1. Provide a 99% confidence interval for the difference in mean birth weight between infants born to mothers who are nonsmokers and infants born to mothers who are smokers. Round all calculations and final answers to three decimal places. Lower bound= Upper bound= 2. Someone claims that infants born to mothers who are nonsmokers have an average birth weight more than 200 grams lower than infants born to mothers who are smokers. Test this hypothesis at the 5% significance level using the critical value approach. A. Select the null and alternative hypothesis from list below. Enter your answer as the letter only (eg., A) from the list below. Null hypothesis: Alternative hypothesis: B. What is the relevant t-statistic? Round all calculations and final answer to three decimal places. t= C. What is the conclusion? (Find the relevant critical value to reach your conclusion.) Enter your answer as the letter only (eg., A) from the list below. Conclusion= Possible answers for parts 2.A and 2.C. Enter your answer as the letter representing your choice only (eg., A): A. Accept Ho
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