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hi! I need answers on 1 to 3. Specially to number 2, which I am confused what althernative and null hypothesis to use. Thank u!

hi! I need answers on 1 to 3. Specially to number 2, which I am confused what althernative and null hypothesis to use. Thank u!

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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hi! I need answers on 1 to 3. Specially to number 2, which I am confused what althernative and null hypothesis to use. Thank u!

A student invented a drug to regulate, specifically to decrease, the blood sugar levels of people with diabetes. A test was conducted to a diabetic person before and after taking the drug. The results are shown below. Assume that the blood sugar level (mmol/L) are normally distributed with the same standard deviation. Use a = BEFORE AFTER 1 49.1 49.2 44.0 46.1 3 54.2 44.2 4 55.0 53.1 5 48.9 59.2 45.7 42.7 7 60.2 45.3 8 57.3 51.9 9. 49.2 51.3 10 61.5 47.3 11 39.8 58.4 12 47.5 49.7 13 55.6 44.6 14 46.1 57.1 15 65.3 45.9 Express your answers with three decimal places for non-whole numbers. 1. What is the standard deviation of each sample? 2. Provide a null and alternative hypotheses. 3. Provide appropriate rejection criteria. 4. Determine if there is any difference in the test before and after the drug intake. (Provide and interpret your conclusion) 5. Find a 95% confidence interval on the difference in means for the two observations.
Transcribed Image Text:A student invented a drug to regulate, specifically to decrease, the blood sugar levels of people with diabetes. A test was conducted to a diabetic person before and after taking the drug. The results are shown below. Assume that the blood sugar level (mmol/L) are normally distributed with the same standard deviation. Use a = BEFORE AFTER 1 49.1 49.2 44.0 46.1 3 54.2 44.2 4 55.0 53.1 5 48.9 59.2 45.7 42.7 7 60.2 45.3 8 57.3 51.9 9. 49.2 51.3 10 61.5 47.3 11 39.8 58.4 12 47.5 49.7 13 55.6 44.6 14 46.1 57.1 15 65.3 45.9 Express your answers with three decimal places for non-whole numbers. 1. What is the standard deviation of each sample? 2. Provide a null and alternative hypotheses. 3. Provide appropriate rejection criteria. 4. Determine if there is any difference in the test before and after the drug intake. (Provide and interpret your conclusion) 5. Find a 95% confidence interval on the difference in means for the two observations.
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