Question

Just Need part 4

You will conduct statistical surveys in which you attempt to make a conclusion about multiple population parameters. Here are the project guidelines: You will use the De Anza College student body as your population You must sample at least 50 students, asking them 2 questions Question #1: This will be an average / 1-population question Question #2: This will be a proportion / 2-population question You must work in groups of 1 to 3 people (You only have to turn in 1 copy / group). The project must be typed. (Calculations may be hand-written) The project is due Friday, June 21st So that you do not wait until the last weekend to complete the entire project, I strongly suggest you complete the following parts of the project, at the absolute latest, by the following dates: 1 Decide on group, 2 questions, & when, where, & how you will conduct your samples (Fri May 31st) 2 Complete Part I (data collection) of the project (Wed June 5th 3 Complete Part II (one-population question) of the project (Wed June 12th) 4 - Complete Part III (two-population question) of the project (Mon June 17th) 5 Complete Part IV (histogram & boxplots) & any revisions to overall project (Fri June 21st) Goals: To prepare for the final exam by reviewing many of the key concepts in this course. Confidence intervals, hypothesis tests, histograms, box plots, sampling C To gain experience conducting, analyzing, & interpreting your very own statistical project. Part I: Data Collection (7 total pts) 1.) (2pt) How, when, and where will you conduct your sample? Be very specific - times, locations, dates, and how you asked your question. 2.) (2pt) How will you make sure it is a random sample? Explain in full detail all the steps you made to make sure it is NOTa convenience sample. 3.) (2pt) What kind of sample is it (simple random, stratified, cluster, convenience, systematic)? Why? It is fine if it is a combination of 2 or more types. 4.) (1pt) What is the non-response rate? (# of people who chose not to answer your question)/(to tal number of people asked) Part II: One-Population, Average Question (60 total pts) 1.) Question: a) (1pt) What is the question you asked the student? b) (2pt) Why are you interested in this question? For example, is it a related to a particular hobby, job, or general interest of yours, and how? (There is no right or wrong answer) 2.) Confidence Interval: a) (3pt) What are the following statistics /parameters (if you know them)? How did you calculate each value (explain with formulas or specific calculator commands used)? p,X,p,u,n,s, and/or o. (Note: some of these will not be applicable to your question) b) (1pt) What is the point estimate of your population parameter? c) (4pt) Describe your sample statistic in words. What is the distribution of the sample statistic? Explain why it has this distribution. f) (3pt) Use your graphing calculator to calculate the test statistic & p-value. State which calculator command you used and explain why. g) (4pt) Sketch a graph of the region whose area the p-value represents. Label the values of the horizontal axis with the appropriate values. h) (2pt) Define the p-value in the context of the problem. i) (3pt) Do you reject or fail to reject the null hypothesis? Why or why not? j) (2pt) Interpret your conclusion in the context of the problem. Part IV: Histograms & Plots (Only for Average Question from Part II) (24 total pts) 1.) Histogram a) (6pt) Construct a histogram. You can do this by hand (please use a ruler) or on a computer b) (1pt) What does the horizontal axis represent? What does the vertical axis represent? c) (1pt) How many bars are there? (Note: It is completely up to you) d) (1pt) What is the width of each bar? 2.) Box Plot a) (5pt) Construct a box plot. You can do this by hand (please use a ruler) or on a computer b) (3pt) What are the 5 key values AND what do these values represent? c) (2pt) What is the IQR? d) (2pt) What is the range? e) (3pt) Are there any outliers? If so, how many? Explain why or why not. Here are some examples of past questions: (Be creative and choose your own questions! =)) What is the proportion of DA students that prefers the Apple iPhone to the Samsung Galaxy? What is the average number of romantic relationships a DA student has been in? What is the proportion of DA students that loves statistics? (It's higher than you think! =D) What is the proportion of DA students that has a tattoo? What is the average miles-per-gallon (MPG) in a DA student's car? What is the proportion of DA students that has tried online dating?

Answer 1

ample he Supoe eseareher Look Dar a Qe Anza Cotlege idenls and 50 larl semeslar heir nam aloul nal score

dolows The &alaael he gol- Chas ulel Waukes otland) 7 O-20 20-40 15 40-60 21 60-80 go-100 2 5 0 TOTAL Histogiam 1C 20 40 60 Maiks olaind 6) he heri zonal lhe marles aus otlained slidmlh The veel anus There 5 Alarses hence 5 aus & widlh gt far earh 20 uuils Fugpny