Kids and Guns The following data show where children obtain guns for committing crimes. Source Number of children Send data to Excel Part: 0/2 Part 1 of 2 Friend Family Street Gun or Pawn Shop Other 24 16 10 9 5 Construct the pie graph for the given data. KIDS AND GUNS 270°- By Pawn Shop 180° 90° Friend 0 Family 0 Street 0 Gun or Pawn Shop Other 0
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- The segmented bar graphs below depict data from the NAAL (National Assessment of Adult Literacy) conduct-ed in 2003. (Source: Kutner, M., et al, Literacy in Everyday Life: Results From the 2003 National Assessment of Adult Lit-eracy (NCES 2007–480).U.S. Department of Education. Washington, DC) Does there appear to be a relationship between volunteer-ism and literacy level? a) Yes, all three bars have the same number of segments.b) Yes, because all three bars have the same height.c) Yes, because the corresponding segments of the threebars have different heights.d) No, because the corresponding segments of the threebars have different heights.e) No, because the sums of the 3 proportions in each barare identical.Number of cards 0 1 2 or 3 4 or more Number of people 66 54 42 41 Construct a pie graph for the given dataWhich statement describes the shape of the data? 1-it is symmetric and has no gaps 2- it is not symmetric and has a peak at 7.00 3- it is a cluster from 1.00-7.00 and has no gaps 4-it is a cluster from 1.00-7.00 and has a peak at 6.00
- 2) A researcher is interested in studying if male smokers and female smokers smoke a different number of cigarettes each day. She takes a sample of 10 male smokers and 10 female smokers from a nearby motorcycle club by asking the first 10 smokers of each gender she encountered. Their results are recorded below. Male 18 25 30 16 24 32 15 27 19 15 Female 12 15 36 30 12 18 34 22 10 12 Answer the following: a. Create appropriate graph(s) that can be used to compare the samples. Using the graph(s) to explain: does it appear that the number of cigarettes smoked by each gender are different? b. To run a formal test, which test will you run and which distribution will you use? Explain why for each. Are there any concerns you have about using the results of this test? c. Write the following hypothesis in symbols: Null Hypothesis: The average number of cigarettes smoked by male and female smokers is the same. H0: ________________________…HR manager in L&B real-state company is working with finance department in improving thesalaries and the following descriptive statistics were obtained ( The table attached ) ( The graph attached ) ------------ The company has hired you to answer the following questions:1) Find the missing values of (a), (b), (c) and (d). 2) Do you think that the salaries in the departments are skewed, justify your answer with proper measurefrom table (2).3) Based on the boxplot for the salaries by department in graph (1), comment on the graph in terms ofexistence of outliers, skewness and which department has higher outliers.4) Based on your answer in (3), comment and compare on the suitable central and absolute dispersionmeasures depending on table (2).5) Based on table (1), do you think the salaries of which group is more homogenous, support your answerand comment on the results.Eight students form a math homework group. The students in the group are Joe, Earl, Zippy, Annette, Stinky, Muriel, Chet, and Oswaldo. Prior to forming the group, Stinky was friends with everyone but Muriel. Muriel was friends with Zippy, Annette, Chet, and Earl. Joe was friends with Stinky, Earl, Oswaldo, and Zippy. Letting an edge between two students represent friendship, which of the following graphs models the friendships among these students?
- The ice cream dessert at a restaurant comes in 4 flavors:strawberry, cookie dough, peanut butter, and lemon.There were 15 ice cream desserts ordered on Friday. Here they are by flavor: lemon, lemon, peanut butter, lemon, peanut butter, strawberry, lemon, strawberry, lemon, lemon, lemon, cookie dough, cookie dough, cookie dough, lemon Draw the bar graph for these data.In a study of fourth, fifth and sixth graders, the following data were collected on their gender and their primary goal. Primary Goal Gender Good Grades (G) Popularity (P) Good at Sports (S) Row Totals Male (M) 113 53 55 221 Female (F) 132 89 26 247 Column Totals 245 142 81 468 a) Since data were collected for variable(s), the correct graph to make is a b) Which of the following is the correct graph for the above data with Primary Goal grouped by Gender. (If using a screenreader and you cannot see the options, use "message instructor" and include a copy of your graph for hand grading.)Rita is a runner. She records the amounts of time that it takes her to run different distances in the scatter plot below. Which statements are true? a) There is a least one outlier represented in the scatter plot. b) There is a linear association between distance and time in the scatter plot. c) There is a nonlinear association between distance and time in the scatter plot. d) There is a positive association between distance and time in the scatter plot. e) There is a negative association between dstance and time in the scatter plot.
- 3. Travel Nicole wants to tour Asia. She will start and end her journey in Tokyo and visit HongKong, Bangkok, Seoul, and Beijing. The airfares available to her betweencities are given in the table. Draw a weighted graph that represents the travel costs between cities and use thealgorithm to find a low-cost route. Highlight/color the edges to show the circuit.A process manufactures plastic tapes in batches of 50 units (tapes). The inspection records of the last 30 batches produced during one week individually by 30 workers of this process revealed the following results: (IMAGE) ) (IT IS IN SPANISH, BUT IT IS UNDERSTANDABLE) worker --- defective tapes --- worker ---- defective tapes The production supervisor, will award a prize to the most outstanding worker of the week and in addition a party will be given in his honor. a) Draw a graph of worker vs. % of non-conforming product. b) What is the average quality level of the week obtained by the workers in this process? c) To whom should the award be assigned?Who was the best worker? Who was the worst worker? d) What would you do to improve the results of this process?A battery manufacturer is interested in the lifetime of its products. Thirty batteries are tested until they fail. The times to failure (in hours) are given below.41.3 21.1 35.6 13.5 4.2 15.8 5.5 5.8 33.6 18.6 24.3 18.1 3.5 8.4 42.1 9.4 10.6 8.913.7 19.6 9.2 5.9 19.4 24.227.3 30.6 29.4 18.0 32.8 15.6 Construct a graph to display the data. The manufacturer claims that 50% of its batteries last longer than 20 h. Describe how your graph shows whether or not this is true.
