Compute the Correct Critical Value for The Problem Math Questions
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages Description/Paper Instructions
MTH 250 PROJECT Due by 5/11/2021
Please answer all of the following questions. Be neat, show your work, use full sentences and explain your answers. Please professionally present your project. Use Excel to create your graphs. You can work with a partner if you want. If you plan to work with a partner, you must let me know at least a week before the project’s due date. If you work with a partner, you can turn in just one project. Please do your own work, and do not copy anyone elses project. If you have trouble obtaining the data, let me know. PART 1: M&Ms For this part of the project, you will need to obtain a bag of M&Ms and count how many M&Ms there are of each color. (If you dont want to do M&Ms you could do Skittles, or count how many of each type of nut are in a container of mixed nuts. If you have another similar idea that you would like to do, let me know so I can approve it) 1. What is the variable we are studying? Is this variable quantitative or qualitative? If the variable is quantitative, is it continuous or discrete? 2. Create a frequency distribution for the number of M&Ms of each color. 3. Create a relative frequency distribution for the number of M&Ms of each color. 4. What is the mode? 5. Create a graph to display this data. Make sure your graph is labeled appropriately. (You can select the type of graph you think is appropriate) PART 2: Cereal For this part of the project, you should go to the grocery store (or online store..) and look at the nutrition facts for many different boxes of cereal. I would recommend collecting data on at least 20 types of cereal. For each cereal please make a table of the following data: (If the cereal lists nutrition information for being served with milk, please just use the nutrition information for plain cereal.) Name of Cereal Grams of Total Carbohydrates Grams of Fiber Please include the table with your project. For each of these two variables: 1. Is the variable qualitative or quantitative? If the variable is quantitative, is it continuous or discrete? 2. Find the mean, median, sample standard deviation, and IQR. Find the five-number summary. 3. Calculate whether there are any outliers. If there are outliers, explain how you could tell these values are outliers. If there are no outliers, explain how you decided there are no outliers. 4. Create a histogram. (You can group data in classes) Make sure your graph is labeled appropriately. 5. Create a boxplot. 6. Looking at the histogram and/or boxplot, what shape would you say that the data has? (If the shape is kind of awkward, thats okay. Give your best analysis of it.) 7. If you had to report on the typical amount of carbohydrates and the typical amount of fiber in a serving of cereal, what measure of the center would you use for each one? Why? Two more problems: 8. A high-fiber cereal boasts that it contains 20 g of fiber. A low-carb cereal has just 14g of carbohydrates. Use the means and standard deviations you calculated to find a z-score for each cereal of these cereals. Based on these z-scores, which cereal is more exceptional? 9. For this problem, choose whichever of the variables was approximately bell-shaped. If both were bell-shaped, choose either one; If neither one is bell-shaped choose the closest one to bell-shaped and we will pretend it was bell-shaped. Use empirical rule to state the values that approximately 68%, 95%, and 99.7% of cereals would fall between. Part III: Confidence Interval This part of your project will be to construct confidence intervals and perform hypothesis tests without using the calculator to do all the work. Also, you must be able to interpret your results. Please round answers to 3 decimal places. Not Allowed: Do not use anything in the STAT > > TESTS menu Allowed: You can use 1-Var Stats. 10. Confidence Interval In a study of maximal aerobic capacity, 12 women had their blood plasma volume measured. The following data is their blood plasma volumes in liters. 3.75 2.89 2.70 3.12 2.61 3.85 2.96 3.87 3.15 2.96 3.52 3.12 a. Calculate the mean and sample standard deviation of the womens blood plasma volume. (You can use 1-Var Stats on your calculator) b. We want to find a 90% confidence interval. What is the critical value ????/??? Explain how you found it. c. Construct a 90% confidence interval for the mean womens blood plasma volume by using the formula. Show your work. d. Write a sentence to interpret the confidence interval that you constructed. e. We would like to redo this study with better accuracy. We would like the margin of error to be no more than 0.1 liters. What sample size should we use for our new study? Part IV: Hypothesis 11. Hypothesis Test The ToothBright Toothpaste Company claims that 4 out of 5 dentists (80% of dentists) recommend their toothpaste to patients. You think that the proportion of dentists who recommend ToothBright is less than that, so you contact 100 randomly selected dentists across the country to ask if they recommend ToothBright toothpaste to their patients, and 71 of them said yes. Perform your hypothesis test at the ?=.05 level of significance. a. State the null and alternative hypotheses. b. Calculate the test statistic. Show your work. c. What is the correct critical value (or values) for the problem? Explain how you found it. d. Mark the Critical Value(s) and the Test Statistic on the curve. Also, indicate clearly which area is the critical region. e. Is your test statistic in the critical region? f. Are you going to reject or fail to reject the null hypothesis? How did you decide? g. State your conclusion. (without using words like reject and hypothesis)
RUBRIC
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). Zero points: Student failed to include citations and/or references. Or the student failed to submit a final paper. 5 out 20 points: Sources are seldom cited to support statements and/or format of citations are not recognizable as APA 6th Edition format. There are major errors in the formation of the references and citations. And/or there is a major reliance on highly questionable. The Student fails to provide an adequate synthesis of research collected for the paper. 10 out 20 points: References to scholarly sources are occasionally given; many statements seem unsubstantiated. Frequent errors in APA 6th Edition format, leaving the reader confused about the source of the information. There are significant errors of the formation in the references and citations. And/or there is a significant use of highly questionable sources. 15 out 20 points: Credible Scholarly sources are used effectively support claims and are, for the most part, clear and fairly represented. APA 6th Edition is used with only a few minor errors. There are minor errors in reference and/or citations. And/or there is some use of questionable sources. 20 points: Credible scholarly sources are used to give compelling evidence to support claims and are clearly and fairly represented. APA 6th Edition format is used accurately and consistently. The student uses above the maximum required references in the development of the assignment. Grammar (worth maximum of 20% of total points) Zero points: Student failed to submit the final paper. 5 points out of 20: The paper does not communicate ideas/points clearly due to inappropriate use of terminology and vague language; thoughts and sentences are disjointed or incomprehensible; organization lacking; and/or numerous grammatical, spelling/punctuation errors 10 points out 20: The paper is often unclear and difficult to follow due to some inappropriate terminology and/or vague language; ideas may be fragmented, wandering and/or repetitive; poor organization; and/or some grammatical, spelling, punctuation errors 15 points out of 20: The paper is mostly clear as a result of appropriate use of terminology and minimal vagueness; no tangents and no repetition; fairly good organization; almost perfect grammar, spelling, punctuation, and word usage. 20 points: The paper is clear, concise, and a pleasure to read as a result of appropriate and precise use of terminology; total coherence of thoughts and presentation and logical organization; and the essay is error free. Structure of the Paper (worth 10% of total points) Zero points: Student failed to submit the final paper. 3 points out of 10: Student needs to develop better formatting skills. The paper omits significant structural elements required for and APA 6th edition paper. Formatting of the paper has major flaws. The paper does not conform to APA 6th edition requirements whatsoever. 5 points out of 10: Appearance of final paper demonstrates the student’s limited ability to format the paper. There are significant errors in formatting and/or the total omission of major components of an APA 6th edition paper. They can include the omission of the cover page, abstract, and page numbers. Additionally the page has major formatting issues with spacing or paragraph formation. Font size might not conform to size requirements. The student also significantly writes too large or too short of and paper 7 points out of 10: Research paper presents an above-average use of formatting skills. The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper. GET THIS PROJECT NOW BY CLICKING ON THIS LINK TO PLACE THE ORDER
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