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Identify a business problem or opportunity at a company where you work or with which you're familiar. It should be a problem/opportunity for which gathering and analyzing some type of data would help you understand the problem/opportunity better. Identify a research variable within the problem/opportunity that could be measured with some type of data collection.Consider methods for collecting a suitable sample of either qualitative or quantitative data for the variable.Considerhow you will know if the data collection method would be valid and reliable. Develop a 1,000-word analysis to describe a company, problem, and variable.Include in your submission:Identify the name and description of the selected company.Describe the problem at that company.Identify one research variable from that problem.Describe the methods you would use for collecting a suitable sample of either qualitative or quantitative data for the variable (Note: do not actually collect any data).Analyze how you will know if the data collection method would generate valid and reliable data (Note: do not actually collect any data).Format your assignment consistent with APA guidelines. This will be a business problem that you use for the individual assignments in Weeks 3 to 5. Identify a business problem or opportunity at a company where you work or with which you're familiar. Relevant Minitab Express output and to clearly identify your test statistic and p value. Step 1 to check assumptions use Minitab Express for steps 2 and 3. The only hand calculations that you will need to do will be in Use the five-step hypothesis testing procedure toĪddress this research question. We want to know if there is evidence that in the population of all World Campus students, The proportion of all World Campus students who are employed full-time with a margin ofĮrror of 3%? You will need to do hand calculations. What sample size would be necessary to construct a 95% confidence interval to estimate Remember to include all relevant Minitab Express output and Use Minitab Express to construct a 95% confidence interval to estimate the proportion ofĪll World Campus students who are employed full-time. In that sample of 45 students, 32 students reported they wereĪ. Along with exam scores, the instructor also collected data concerning employment status of the
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The mean difference in exam scores with a margin of error of 0.5 points? You will need to do What minimum sample size would be necessary to construct a 95% confidence interval for Use Minitab Express to construct a 95% confidence interval for the mean difference in examĬ. Step 4: Decide to reject or fail to reject the nullī. Step 1: Check assumptions and write hypotheses Include all relevant Minitab Express output and to clearly identify your test statistic and p Use the five-step hypothesis testing procedure given below. Scores on the two exams are different in the population of all students in the introductory
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Use Minitab Express to conduct a paired means t-test to determine if there is evidence that The mean difference, computed asĮxam 1 – Exam 2, was 1.5076 points with a standard deviation of 5.8854 points.Ī. Data were collected from a representative sample of 45 A curriculum coordinator wants to know if students tend to score differently on the first and secondĮxams in an introductory stats course. Use complete sentences and always provide explanations along with any screenshots orġ. If you have any questions, post them to the course discussion board. Hand calculations, show your work using the Word Equation editor.Īlways clearly identify your final answers and round all answers to 3 decimal places.įor an example of formatting, see the sample lab in the Lesson 1 Module in Canvas.
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STAT 200 LAB 8 -Lesson 8: Inference for One SampleĪnswer the questions in this document in a different color and not bolded.Īlways show your work full credit will not be given to answers without work shown.