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Most Popular Content
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Simple Random Sampling
1. When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population int ...
Simple Random Sampling
1. When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population into 2,007 groups called ...
Grossmont College Proportion & Probability Worksheet
Variables
Math: Math SAT score
Verbal: Verbal SAT score
Credits: Number of credits the student is registered for
...
Grossmont College Proportion & Probability Worksheet
Variables
Math: Math SAT score
Verbal: Verbal SAT score
Credits: Number of credits the student is registered for
Year: Year in college (1=Freshman, 2=Sophomore, 3=Junior, 4=Senior)
Exercise: Time (in minutes) spent exercising in a typical day
Sleep: Time (in hours) spent sleeping in a typical day
Veg: Are you a vegetarian (yes, no, some)
Cell: Do you own a smart phone (yes, no)
Data
If you have not done so already, download the cell-phones datafile. As always, if you are prompted to login, just close the prompt and continue with the download.
Upload the datafile into StatCrunch. Note: the symbol * in the spreadsheet indicates a missing value; this means that the associated individual did not answer the question.
Context
In 2015 college students at a large state university completed a survey about their academic and personal life. Questions ranged from "How many credits are you registered for this semester?" to "Would you define yourself as a vegetarian?"
The researcher randomly selected 325 students from the university; 312 responded to the survey.
Prompt
The cell-phone datafile is available in the Data section below.
Once again, here is the research question for this lab.
Based on a recent study, roughly 80% of college students in the U.S. own a smartphone. Is the proportion of smartphone owners lower at this university?
Respond to each of the following in your initial post.
State your hypotheses in symbolic form and in words. (The following should be clear in your answer: the population of interest and the meaning of the proportion p in terms of the variable Cell.)
StatCrunch uses a normal model to estimate the P-value probability. Verify that normality conditions are met.
Use StatCrunch to conduct the hypothesis test. (directions)
Copy and paste the results (the StatCrunch output window) into your initial post.
Give your P-value and interpret its meaning as a conditional probability.
State a conclusion that answers the research question. Use a significance level of 5%. (Your answer should include the P-value and reference the population and the variable Cell.)
Read all 5 questions carefully and answer these questions in Word document
Here is my assignment to please read the instruction carefully. Please see attached. Please write your own words. Plagiari ...
Read all 5 questions carefully and answer these questions in Word document
Here is my assignment to please read the instruction carefully. Please see attached. Please write your own words. Plagiarism is not acceptable at all. So, make a good writing to keep working with you.Thank you
Grossmont College Doctor Dogs Diagnose Cancer by Sniffing It Out Story Discussion
Learn by DoingHere are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing disc ...
Grossmont College Doctor Dogs Diagnose Cancer by Sniffing It Out Story Discussion
Learn by DoingHere are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises. ContextA newspaper story in Knight Ridder Newspapers described an experiment in an article with the headline “Doctor Dogs Diagnose Cancer by Sniffing It Out.”In the experiment researchers trained dogs to identify people with breast or lung cancer. The dogs were trained to lay down if they detected cancer in a breath sample. After the training, dogs sniffed different breath samples of people with and without cancer. Impartial observers watched the dogs and decided when the dog identified a person as having cancer. Researchers then revealed the condition of the person who gave the breath sample and determined if the dog had correctly identified the presence of cancer.The newspaper states, “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”PromptExplain what the following sentence means. “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”Explain why blinding in this experiment is important.
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Most Popular Content
1 page
Simple Random Sampling
1. When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population int ...
Simple Random Sampling
1. When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population into 2,007 groups called ...
Grossmont College Proportion & Probability Worksheet
Variables
Math: Math SAT score
Verbal: Verbal SAT score
Credits: Number of credits the student is registered for
...
Grossmont College Proportion & Probability Worksheet
Variables
Math: Math SAT score
Verbal: Verbal SAT score
Credits: Number of credits the student is registered for
Year: Year in college (1=Freshman, 2=Sophomore, 3=Junior, 4=Senior)
Exercise: Time (in minutes) spent exercising in a typical day
Sleep: Time (in hours) spent sleeping in a typical day
Veg: Are you a vegetarian (yes, no, some)
Cell: Do you own a smart phone (yes, no)
Data
If you have not done so already, download the cell-phones datafile. As always, if you are prompted to login, just close the prompt and continue with the download.
Upload the datafile into StatCrunch. Note: the symbol * in the spreadsheet indicates a missing value; this means that the associated individual did not answer the question.
Context
In 2015 college students at a large state university completed a survey about their academic and personal life. Questions ranged from "How many credits are you registered for this semester?" to "Would you define yourself as a vegetarian?"
The researcher randomly selected 325 students from the university; 312 responded to the survey.
Prompt
The cell-phone datafile is available in the Data section below.
Once again, here is the research question for this lab.
Based on a recent study, roughly 80% of college students in the U.S. own a smartphone. Is the proportion of smartphone owners lower at this university?
Respond to each of the following in your initial post.
State your hypotheses in symbolic form and in words. (The following should be clear in your answer: the population of interest and the meaning of the proportion p in terms of the variable Cell.)
StatCrunch uses a normal model to estimate the P-value probability. Verify that normality conditions are met.
Use StatCrunch to conduct the hypothesis test. (directions)
Copy and paste the results (the StatCrunch output window) into your initial post.
Give your P-value and interpret its meaning as a conditional probability.
State a conclusion that answers the research question. Use a significance level of 5%. (Your answer should include the P-value and reference the population and the variable Cell.)
Read all 5 questions carefully and answer these questions in Word document
Here is my assignment to please read the instruction carefully. Please see attached. Please write your own words. Plagiari ...
Read all 5 questions carefully and answer these questions in Word document
Here is my assignment to please read the instruction carefully. Please see attached. Please write your own words. Plagiarism is not acceptable at all. So, make a good writing to keep working with you.Thank you
Grossmont College Doctor Dogs Diagnose Cancer by Sniffing It Out Story Discussion
Learn by DoingHere are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing disc ...
Grossmont College Doctor Dogs Diagnose Cancer by Sniffing It Out Story Discussion
Learn by DoingHere are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises. ContextA newspaper story in Knight Ridder Newspapers described an experiment in an article with the headline “Doctor Dogs Diagnose Cancer by Sniffing It Out.”In the experiment researchers trained dogs to identify people with breast or lung cancer. The dogs were trained to lay down if they detected cancer in a breath sample. After the training, dogs sniffed different breath samples of people with and without cancer. Impartial observers watched the dogs and decided when the dog identified a person as having cancer. Researchers then revealed the condition of the person who gave the breath sample and determined if the dog had correctly identified the presence of cancer.The newspaper states, “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”PromptExplain what the following sentence means. “The researchers blinded both the dog handlers and the experimental observers to the identity of the breath samples.”Explain why blinding in this experiment is important.
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