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3. Is the distribution below (A) normally distributed (B) Skewed (left) (C) Skewed (right): ANSWER HERE: length length 4. What percentage of a normal distribution would be greater than (above) a Z score of 1.35? You will need to use the Standard Normal Table for this question (found in your textbook). 5. What percentage of a normal distribution would be less than (below) a Z score of 0.85? You will need to use the Standard Normal Table for this question (found in your textbook). Ksuanbeg

3. Is the distribution below (A) normally distributed (B) Skewed (left) (C) Skewed (right): ANSWER HERE: length length 4. What percentage of a normal distribution would be greater than (above) a Z score of 1.35? You will need to use the Standard Normal Table for this question (found in your textbook). 5. What percentage of a normal distribution would be less than (below) a Z score of 0.85? You will need to use the Standard Normal Table for this question (found in your textbook). Ksuanbeg

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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W AutoSave O Search (Alt+Q) Bobineaux, Vanessa M Off Document2 - Word BV File Home Insert Draw Design Layout References Mailings Review View Help RCM P Comments A Share O Find Calibri (Body) v 11 v A A Aa v Po No Spacing Heading 1 C Replace Normal Paste В I U v ab x, x A - Dictate Sensitivity Editor Reuse A Select v Files Undo Clipboard Font Paragraph Styles Editing Voice Sensitivity Editor Reuse Files 6. A research team is interested in the potential relationship between smoking and life expectancy. What would be the null hypothesis concerning these two variables? What is a possible research hypothesis concerning these two variables? Write both hypotheses below in proper notation. 3. Is the distribution below (A) normally distributed (B) Skewed (left) (C) Skewed (right): ANSWER HERE: length Mean- 28.15 Std. Dev,4.464 N-1,552 7. A research team wants to identify the mean years of education for a population and decides to take a sample from the population. In order to know the range of possible population parameters based on their sample the research team decides to calculate a confidence interval around the theoretical sampling distribution based on their sample. The sample has a mean of 13.5 and a standard error of 1.5 for years of education. 100 a. What is the upper and lower limit of a 95% confidence interval for this sample? You will need to use the CI formula for this question. Show your work. length a. In a statement (1-2 sentences), interpret what this confidence interval means regarding the population parameters. 4. What percentage of a normal distribution would be greater than (above) a Z score of 1.35? You will need to use the Standard Normal Table for this question (found in your textbook). INTERPRETING STATISTICAL TESTS 1. Below are the results of a t-test comparing the (totally made up) mean income for those with a college degree verse those without a college degree. Answer the following questions based on the information in these results. Mean income – WITH college degree: $63.500 5. What percentage of a normal distribution would be less than (below) a Z score of 0.85? You Mean income - WITHOUT college degree: $41,800 will need to use the Standard Normal Table for this question (found in your textbook). t-value: 12.82 English (United States) * Accessibility: Investigate D Focus Page 5 of 12 1856 words Text Predictions: On 74% 8:29 PM O Type here to search 40°F Cloudy 4) ENG W 99+ 4/19/2022 Frequency
Transcribed Image Text:W AutoSave O Search (Alt+Q) Bobineaux, Vanessa M Off Document2 - Word BV File Home Insert Draw Design Layout References Mailings Review View Help RCM P Comments A Share O Find Calibri (Body) v 11 v A A Aa v Po No Spacing Heading 1 C Replace Normal Paste В I U v ab x, x A - Dictate Sensitivity Editor Reuse A Select v Files Undo Clipboard Font Paragraph Styles Editing Voice Sensitivity Editor Reuse Files 6. A research team is interested in the potential relationship between smoking and life expectancy. What would be the null hypothesis concerning these two variables? What is a possible research hypothesis concerning these two variables? Write both hypotheses below in proper notation. 3. Is the distribution below (A) normally distributed (B) Skewed (left) (C) Skewed (right): ANSWER HERE: length Mean- 28.15 Std. Dev,4.464 N-1,552 7. A research team wants to identify the mean years of education for a population and decides to take a sample from the population. In order to know the range of possible population parameters based on their sample the research team decides to calculate a confidence interval around the theoretical sampling distribution based on their sample. The sample has a mean of 13.5 and a standard error of 1.5 for years of education. 100 a. What is the upper and lower limit of a 95% confidence interval for this sample? You will need to use the CI formula for this question. Show your work. length a. In a statement (1-2 sentences), interpret what this confidence interval means regarding the population parameters. 4. What percentage of a normal distribution would be greater than (above) a Z score of 1.35? You will need to use the Standard Normal Table for this question (found in your textbook). INTERPRETING STATISTICAL TESTS 1. Below are the results of a t-test comparing the (totally made up) mean income for those with a college degree verse those without a college degree. Answer the following questions based on the information in these results. Mean income – WITH college degree: $63.500 5. What percentage of a normal distribution would be less than (below) a Z score of 0.85? You Mean income - WITHOUT college degree: $41,800 will need to use the Standard Normal Table for this question (found in your textbook). t-value: 12.82 English (United States) * Accessibility: Investigate D Focus Page 5 of 12 1856 words Text Predictions: On 74% 8:29 PM O Type here to search 40°F Cloudy 4) ENG W 99+ 4/19/2022 Frequency
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