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Progress Check
Use this activity to assess whether you and your peers can: Use
Progress Check
Use this activity to assess whether you and your peers can: Use StatCrunch to find a one-sample T-interval to estimate a population mean.
Interpret a confidence interval in context.
Use a confidence interval to find the margin of error (MOE).
Identify which of the two confidence intervals is more accurate.
Identify which of the two confidence intervals is more precise. Directions
Use the drop-down menu to learn about the three steps needed to complete this assignment.
Three steps to complete the assignment
Data
All directions in this assignment open in a new tab.
Login and open StatCrunch (directions).
Open your IAT sample data set in StatCrunch (directions). Variables
Gender-Career IAT Variables
Gender-Career IAT variable descriptions (opens in a new tab).
Gender-Science IAT Variables
Gender-Science IAT variable descriptions (opens in a new tab).
Race IAT Variables
Race IAT variable descriptions (opens in a new tab).
Sexuality IAT Variables
Sexuality IAT variable descriptions (opens in a new tab).
Weapons IAT Variables
Weapons IAT variable descriptions (opens in a new tab).
Weight IAT Variables
Weight IAT variable descriptions (opens in a new tab).
Prompt
You are tasked with using StatCrunch and your unique IAT sample to estimate the population mean for your IAT-Score variable.
Question 1
Use StatCrunch and your unique IAT sample to estimate the mean IAT-Score for the population of IAT participants at the 80% confidence level (directions). Copy the contents of your StatCrunch output window and paste it into your response.
Identify the 80% confidence interval.
Interpret your confidence interval in context.
Can we use the StatCrunch output to find the margin of error (MOE)? If so, what is the MOE? If not, identify the missing information.
Question 2
Use StatCrunch and your unique IAT sample to estimate the mean IAT-Score for the population of IAT participants at the 95% confidence level (directions). Copy the contents of your StatCrunch output window and paste it into your response.
Identify the 95% confidence interval.
Interpret your confidence interval in context.
Can we use the StatCrunch output to find the margin of error (MOE)? If so, what is the MOE? If not, identify the missing information.
Question 3
Which of the two confidence intervals is more accurate? Briefly explain.
Which of the two confidence intervals is more precise? Briefly explain.
StatCrunch Directions
Here is a PDF document with all StatCrunch directions (Links to an external site.) (opens in a new tab).
Module 21 Discussion Board
Use the Module 21 discussion board (opens in a new tab) to ask questions or provide feedback about the problems in any Module 21 activity – including this peer-reviewed assignment.
Review Feedback
Instructor feedback is only available after an assignment is graded.
Use these directions (opens in a new tab) to learn how to review feedback.
Click the “Next” or > button to continue.
Content by Cuyamaca College math faculty and licensed under the Creative Commons 4.0 International LicenseLinks to an external site.. Rubric
Formative Assessments w/ StatCrunch
Formative Assessments w/ StatCrunch
CriteriaRatingsPts
This criterion is linked to a Learning OutcomeAnswering the Prompt
8 ptsFull Credit
The first submission demonstrates a good-faith effort to address each part of the Prompt. Either in the first draft or the optional final draft, all parts of the “Prompt” are addressed and the responses demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. The answers are correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.
6.5 ptsMostly Correct
The first submission demonstrates a good-faith effort to address most of the Prompt. In the optional final draft all parts of the “Prompt” are addressed, and the responses demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. The answers are mostly correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.
3.5 ptsOne or more incorrect
The first submission demonstrates a good-faith effort to respond to a smaller portion of the Prompt. In the first draft or the optional final draft, one or more parts of the “Prompt” are not addressed or are incorrect. Or, answers do not demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. Or, answers are correct, but the writing/work is unclear, incorrect, or difficult to follow.
0 ptsNo Marks
The first submission does not demonstrate a good-faith effort to address the Prompt.
8 pts
This criterion is linked to a Learning OutcomeStatCrunch
2 ptsFull Credit
StatCrunch graphs and/or tables are correct and embedded with your work.
1 ptsPartial Credit
StatCrunch graphs and/or tables are incorrect or missing important information.
0 ptsNo Credit
No StatCrunch information is embedded with your post. Or all StatCrunch work is incorrect.
2 pts
Total Points: 10
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