A survey of 36 randomly selected students who dropped a course was conducted at a college.The following results were collected. Complete parts (a) through (c).Full data setM Course M Work F PersonalF Work FPersonal FF Work M Work IMM Personal FF Personal MM Personal FM Course FM Course MCourse FCourse FPersonal MWork MPersonalPersonalCoursePersonalCourseCourseWork F PersonalWorkF Personal F Course MWorkM Work M Course MWork M Work FM Course M Personal FPersonalCourse|Σ||Σ(a) Construct a contingency table for the two variables.CoursePersonalMaleFemale(b) Test whether gender is independent of drop reason at the α = 0.1 level of significance.What are the hypotheses?O A. Ho: Gender and drop reason are independent.H₁:: Gender and drop reason are dependent.O B. Ho: Pc = PP = PwH₁: At least one of the proportions is different from the others.C. Ho: Oc=Ec and Op = Ep and Ow = EwH₁: Oc Ec or Op #Ep or Ow #EwCalculate the test statistic.x² ==(Round to three decimal places as needed.)Determine the P-value.WorkP-value =(Round to three decimal places as needed.) Make the proper conclusion. Choose the correct answer below.A. Reject Ho. There is not sufficient evidence that gender and drop reason aredependent.B. Fail to reject Ho. There is not sufficient evidence that gender and drop reasonare dependent.C. Reject Ho. There is sufficient evidence that gender and drop reason aredependent.D. Fail to reject Ho. There is sufficient evidence that gender and drop reason aredependent.(c) Construct a conditional distribution of drop reason by gender. Fill in the table below.MaleFemale(Round to three decimal places as needed.)Choose the correct bar graph below.A.B.CCourseMalePCWPMaleWWMaleCPWFemaleC P WFemaleWPFemalePersonalWork

Answered: A survey of 36 randomly selected…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Car manufacturers produced a variety of classic cars that continue to increase in value. Suppose the following data is based upon the Martin Rating System for Collectible Cars, and shows the rarity rating (1-20) and the high price ($1,000) for 15 classic cars. Model Rating Price ($1,000) A 18 1,600.0 B 17 450.0 19 3,975.0 15 77.5 18 350.0 17 140.0 16 125.0 16 250.0 14 87.0 19 1,300.0 16 375.0 19 2,650.0 13 45.0 17 375.0 18 1,000.0 00 с D E LL F G H I J L M N O
The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). Student Perpectual Bempah Megan Brooks Jeff Honeycutt Clarice Jefferson Crystal Kurtenbach Janette Lantka Kevin McCarthy Tammy Ohm Kathy Wojdya Pulse 63 79 87 75 81 81 68 74 84 (a) Determine the population mean pulse. The population mean pulse is approximately 76.9 beats per minute. (Round to one decimal place as needed.) (b) Determine the sample mean pulse of the following two simple random samples of size 3. Sample 1: {Kathy, Kevin, Megan} Sample 2: (Perpectual, Megan, Jeff} The mean pulse of sample 1 is approximately (Round to one decimal place as needed.) A beats per minute.
The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). Student Perpectual Bempah Megan Brooks Jeff Honeycutt Clarice Jefferson Crystal Kurtenbach Janette Lantka Kevin McCarthy Tammy Ohm Kathy Wojdya Pulse 79 86 84 86 69 86 75 78 88 (a) Determine the population mean pulse. The population mean pulse is approximately (Round to one decimal place as needed.) (b) Determine the sample mean pulse of the following two simple random samples of size 3. Sample 1: (Megan, Kathy, Janette} Sample 2: (Tammy, Kevin, Crystal} The mean pulse of sample 1 is approximately (Round to one decimal place as needed.) The mean pulse of sample 2, is approximately (Round to one decimal place as needed.) The mean pulse rate of sample 1 beats per minute. The mean pulse rate of sample 2 beats per minute. (c) Determine if the means of samples 1 and 2 overestimate, underestimate, or are…
A Statistics class reports the following data on Sex and Eye Color for students in the class: Green/Hazel/Other Total Blue 8 Brown 20 34 4 16 32 36 66 Males Females Total 12 16 12 18 a. What percent of the blue-eyed students are male? type your answer... % b. What percent of the class are blue-eyed males? % type your answer... c. What percent of the male students have blue eyes? type your answer... % d. What percent of the students who do not have blue eyes are females? % type your answer... e. What's the conditional distribution of sex for the brown-eyed students? Male: type your answer... % Female: type your answer... % f. What's the conditional distribution of Eye Color for the males? Blue: type your answer... Brown: type your answer... % %
The manager of Hudson Auto Repair would like to get a better picture of the distribution of costs for new parts used in the engine tune-up jobs done in the garage. A sample of 50 customer invoices for tune-ups has been taken and the costs of parts, rounded to the nearest dollar, are listed below. 91 78 93 57 75 52 99 80 73 62 71 69 72 89 66 75 79 75 72 76 104 74 62 68 97 105 77 65 80 109 85 97 88 68 83 68 71 69 67 74 62 82 98 101 79 105 79 69 62 73 Develop a frequency distribution for these cost data. Use your own judgment to determine the number of classes and class width that provide a distribution that will be meaningful and helpful to the manager. a. Develop a stem-and-leaf display showing both the rank order and shape of the data set. (3) b. Develop a stretched stem-and-leaf display using two stems for each leading digit(s). (2) c. Which display is better at revealing the natural grouping and variation in the data? (1)
Suppose we have the following data available for the average number of hours spent in the Santa Fe College Math lab. Male Female 1.50 0.75 1.20 0.82 1.30 0.91 1.05 0.84 0.75 0.59 0.80 1.02 1.00 1.90 0.95 2.10 0.925 2.20 2.50 2.50 3.00 3.50 3.50 2.20 4.01 1.80 Use Data Displays to comment on the shape of the distribution, measures of center and spread, possible skew, and outliers for both genders. (Hint: Use as many displays as needed.)
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