Description This is undergraduate level (basic statistics) of statistics signature assignment. Ple ...

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Description This is undergraduate level (basic statistics) of statistics signature assignment. Please see the attached file carefully before accept my request :) I need 100% accurate answer along with detailed problem solving step. Thank you! 3 attachments Slide 1 of 3 attachment_1 attachment_1 attachment_2 attachment_2 attachment_3 attachment_3 UNFORMATTED ATTACHMENT PREVIEW West Coast University Math 211 Signature Assignment Name: 1. To study about the correlation between height and shoe size, you need to collect a sample of nine (9) people using a Systematic Sampling method. a. What is the population of people? Where and how are you going to collect your sample? Does your sample accurately represent your population? Why or why not? b. Collect the sample and record the data. Use a single unit for height. Do not use a mixed unit like feet and inches. Person 1 Person 2 Person 3 Person 4 Person 5 Person 6 Person 7 Person 8 Person 9 Height Shoe Size 2. (CLO 1) Construct a confidence interval to estimate the mean height and the mean weight: you must complete the following questions by first choosing a Confidence Level. You may choose from the familiar 90%, 95%, or 99% level of confidence. Denote this by choosing ? = . a. Find the sample mean and sample standard deviation of the height. Denote them as x? and sx respectively. b. Find the sample mean and sample standard deviation of the shoe sizes. Denote them as y? and sy respectively. c. Construct and interpret a confidence interval to estimate the mean height of the population. You must first write the formula for the confidence interval and then substitute your appropriate numbers. d. Construct and interpret a confidence interval to estimate the mean shoe size of the population. You must first write the formula for the confidence interval and then substitute your appropriate numbers. West Coast University Signature Assignment - Page 2 of 2 3. (CLO 2) Test a claim that the mean height of your population is different from 64 inches. Use the appropriate significance level ? you fixed earlier. a. State the initial and alternative hypothesis. b. Find the test statistic and the P-value. You must first write the formula for the test statistic and then substitute your appropriate numbers. c. Draw a conclusion in context of the situation. Your conclusion should include both the formal language as well as an informal explanation. 4. (CLO 3) Find a correlation between height and shoe size. a. Create a scatterplot of the data. Height is x-axis and Shoe size is y-axis. Attach your scatterplot to the end of this document. b. Find the linear correlation coefficient. What does this tell you about your data? c. Write the equation of the regression line and use it to predict the shoe size of a person that is 68 inches tall. 5. Write a paragraph or two about what you have learned from this process. When you read, see, or hear a statistic in the future, what skills will you apply to know whether you can trust the result? Signature Assignment Instruction by Each Question Q1. You need to choose a population. You may just use all WCU LA campus students for the population and collect a sample of 9 students. Because of the pandemic collecting the sample using a systematic sampling method is not easy, so you may just use a convenience sampling method to collect the sample. Q2. You may use the formulas or StatCrunch to find the sample mean and the sample standard deviation. However, you must use the confidence interval formula to construct the confidence intervals. Please show your work. You need to state ? = 0.10 for 90% confidence level, ? = 0.05 for 95% confidence level, and = 0.01 for 99% confidence level. *You can just open any homework assignment to access StatCrunch. Q3. You must use the same significance level (?) that you chose for Q2. You need to use StatCrunch to find the P-value. Your conclusion must state whether you reject H0 and explain what it means to reject/fail to reject H0. Q4. You need to find the correlation coefficient and equation of regression line using the StatCrunch – this topic will be covered during week 7. Even if you have a P-value that is greater than the significance level, you still need to use the equation of regression line to predict the shoe size. Signature Assignment Instruction for Each Question Q1. You need to choose a population. You may just use all WCU LA campus students for the population and collect a sample of 9 students. Because of the pandemic collecting the sample using a systematic sampling method is not easy, so you may just use a convenience sampling method to collect the sample. Q2. You may use the formulas or StatCrunch to find the sample mean and the sample standard deviation. However, you must use the confidence interval formula to construct the confidence intervals. Please show your work. You need to state ? = 0.10 for 90% confidence level, ? = 0.05 for 95% confidence level, and = 0.01 for 99% confidence level. *You can just open any homework assignment to access StatCrunch. Q3. You must use the same significance level (?) that you chose for Q2. You need to use StatCrunch to find the P-value. Your conclusion must state whether you reject H0 and explain what it means to reject/fail to reject H0. Q4. You need to find the correlation coefficient and equation of regression line using the StatCrunch – this topic will be covered during week 7. Even if you have a P-value that is greater than the significance level, you still need to use the equation of regression line to predict the shoe size. Purchase answer to see full attachment Tags: confidence interval systematic sampling method population of people reject the null hypothesis shoe size of the population User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.