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find the LCM of 12a and 15c^3
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MATH 160 Cuyamaca Community College Statistics Cell Phones Hypothesis Test Discussion
Learn by DoingSome features of this activity may not work well on a cell phone or
tablet. We highly recommend that you c ...
MATH 160 Cuyamaca Community College Statistics Cell Phones Hypothesis Test Discussion
Learn by DoingSome features of this activity may not work well on a cell phone or
tablet. We highly recommend that you complete this activity on a
computer.Here are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises. A list of StatCrunch directions is provided at the bottom of this page.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)DataIf 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
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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.PromptThe 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.)
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Most Popular Content
Week 4 Understanding Confidence Intervals Video Discussion
Constructing Confidence Intervals Watch this video https://www.youtube.com/watch?v=tFWsuO9f74o What is a confidence i ...
Week 4 Understanding Confidence Intervals Video Discussion
Constructing Confidence Intervals Watch this video https://www.youtube.com/watch?v=tFWsuO9f74o What is a confidence interval?What are some factors that affect the size of a confidence interval?In the discussion for week 4, you rolled a pair of dice 10 times and calculated the average sum of your rolls. Then you did the same thing with 20 rolls. Use your results from the week 4 discussion for the average of 10 rolls and for the average of 20 rolls to construct a 95% confidence interval for the true mean of the sum of a pair of dice (assume σ = 2.41). What do you notice about the length of the interval for the mean of 10 rolls versus the mean of 20 rolls? Did you expect this? Why or why not?Using your mean for 20 rolls, calculate the 90% confidence interval. Explain its size as compared to the 95% confidence interval for 20 rolls. This is my work from week 4: Sampling a pair of die discussion question. One die has six possible outcomes when it is rolled; while two die has 6^2 = 36 possible outcomes when rolled together. Rolling the die ten times produces a 6^10 possible outcomes. Rolling it 20 times produces a 6^20 possible outcomes. Outcomes for the first ten rolls of a die First, die Second, die sum 4 6 10 3 1 4 5 2 7 3 5 8 5 4 9 5 2 7 1 2 3 6 1 7 2 5 7 2 4 6 Total = 68 Average = sum/number of rolls = 68/10 = 6.8 Outcomes for the second 20 rolls of a die First, die Second, die sum 3 2 5 4 6 10 5 6 11 5 6 11 2 2 4 1 3 4 5 5 10 2 6 8 1 4 5 5 5 10 3 6 9 1 2 3 2 2 4 6 5 11 3 5 8 2 2 4 3 3 6 2 5 7 6 4 10 1 1 2 Total = 142 Average = sum/number of rolls = 142/20 = 7.1 A central limit theorem is a theorem which allows us to work with approximately normal distribution by simplifying problems in statistics (Rosenblatt, 1956). The central limit theorem states that the average of a sample distribution approaches normal distribution average as the size of the sample increases. It says that in a test of rolling a die, as the number of rolling a die increases the average of a distribution sample tends to be a normal distribution. While testing the rolling of a pair of die, I’ve determined that the average of rolling a die is 7. These results show that when the number of rolling a die increases, the average leans towards seven thus proving the central limit theorem.
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Answer the following questions. Copy and paste any required data charts or summaries into this Word document. Use additional space as needed. Be sure ...
MATH 160 Cuyamaca Community College Statistics Cell Phones Hypothesis Test Discussion
Learn by DoingSome features of this activity may not work well on a cell phone or
tablet. We highly recommend that you c ...
MATH 160 Cuyamaca Community College Statistics Cell Phones Hypothesis Test Discussion
Learn by DoingSome features of this activity may not work well on a cell phone or
tablet. We highly recommend that you complete this activity on a
computer.Here are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises. A list of StatCrunch directions is provided at the bottom of this page.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)DataIf 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.ContextIn 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.PromptThe 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.)
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