A random sample of 40 items most commonly bought at a grocery store was selected. The following variables are recorded. Link to Grocery Store DataLinks to an external site. Note: I sued AI to generate the data used for this assignment, but it seemed pretty consistent to the available nutritional information on the web. Description of Variables Food Group (fruit, vegetable, grain, protein, dairy, meat, ect.) Calories per serving Organic (yes or no) Protein amount per serving (grams) Fat per serving (grams) Sugar Amount per serving (grams) Cost Gluten Free (Yes or No) Plant Based (Yes or No) 1) Select a variable we could estimate with a one-mean t-interval? Write the research question. a) Variable __________________________________ b) Question: ____________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ 2) Use the attached data to calculate the following statistics for a 95% confidence interval (use the correct symbols): Point estimate: Critical Value: Standard error: Margin of error: 3) Find and interpret (in context) a 95% confidence interval answering the research question you had about the nutritional information. Upload a screenshot of your work. 4) Select a variable we could estimate with a one-proportion z-interval? Write the research question. a) Variable __________________________________ b) Question: ____________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ 5) Use the attached data to calculate the following statistics for a 95% confidence interval (use the correct symbols): Point estimate: Critical Value: Standard error: Margin of error: 6) Find and interpret (in context) a 95% confidence interval answering the research question you had about the nutritional information. Upload a screenshot of your work. 7) Describe how changing the following would affect the width of the confidence interval. a) …taking a bigger sample. b) …changing the confidence level from 95% to 98%

A random sample of 40 items most commonly bought at a grocery store was selected. The following variables are recorded. Link to Grocery Store DataLinks to an external site. Note: I sued AI to generate the data used for this assignment, but it seemed pretty consistent to the available nutritional information on the web. Description of Variables Food Group (fruit, vegetable, grain, protein, dairy, meat, ect.) Calories per serving Organic (yes or no) Protein amount per serving (grams) Fat per serving (grams) Sugar Amount per serving (grams) Cost Gluten Free (Yes or No) Plant Based (Yes or No) 1) Select a variable we could estimate with a one-mean t-interval? Write the research question. a) Variable b) Question: 2) Use the attached data to calculate the following statistics for a 95% confidence interval (use the correct symbols): Point estimate: Critical Value: Standard error: Margin of error: 3) Find and interpret (in context) a 95% confidence interval answering the research question you had about the nutritional information. Upload a screenshot of your work. 4) Select a variable we could estimate with a one-proportion z-interval? Write the research question. a) Variable b) Question: ________________________________________ 5) Use the attached data to calculate the following statistics for a 95% confidence interval (use the correct symbols): Point estimate: Critical Value: Standard error: Margin of error: 6) Find and interpret (in context) a 95% confidence interval answering the research question you had about the nutritional information. Upload a screenshot of your work. 7) Describe how changing the following would affect the width of the confidence interval. a) …taking a bigger sample. b) …changing the confidence level from 95% to 98%

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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Description of Variables

1. Food Group (fruit, vegetable, grain, protein, dairy, meat, ect.)
2. Calories per serving
3. Organic (yes or no)
4. Protein amount per serving (grams)
5. Fat per serving (grams)
6. Sugar Amount per serving (grams)
7. Cost
8. Gluten Free (Yes or No)
9. Plant Based (Yes or No)

1) Select a variable we could estimate with a one-mean t-interval? Write the research question.

a) Variable __________________________________

b) Question: ____________________________________________________________________________

______________________________________________________________________________________

2) Use the attached data to calculate the following statistics for a 95% confidence interval (use the correct symbols):

1. Point estimate:
2. Critical Value:
3. Standard error:
4. Margin of error:

3) Find and interpret (in context) a 95% confidence interval answering the research question you had about the nutritional information. Upload a screenshot of your work.

4) Select a variable we could estimate with a one-proportion z-interval? Write the research question.

a) Variable __________________________________

b) Question: ____________________________________________________________________________

______________________________________________________________________________________

5) Use the attached data to calculate the following statistics for a 95% confidence interval (use the correct symbols):

1. Point estimate:
2. Critical Value:
3. Standard error:
4. Margin of error:

6) Find and interpret (in context) a 95% confidence interval answering the research question you had about the nutritional information. Upload a screenshot of your work.

7) Describe how changing the following would affect the width of the confidence interval.

a) …taking a bigger sample.

b) …changing the confidence level from 95% to 98%

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