Concept explainers
Use the following information to answer the next eight exercises: An article in the New England Journal of Medicine, discussed a study on smokers in California and Hawaii. In one part of the report, the self-reported ethnicity and smoking levels per day were given. Of the people smoking at most ten cigarettes per day, there were 9,886 African Americans, 2,745 Native Hawaiians, 12,831 Latinos, 8,378 Japanese Americans and 7,650 whites. Of the people smoking 11 to 20 cigarettes per day, there were 6,514 African Americans, 3,062 Native Hawaiians, 4,932 Latinos, 10,680 Japanese Americans, and 9,877 whites. Of the people smoking 21 to 30 cigarettes per day, there were 1,671 African Americans, 1,419 Native Hawaiians, 1,406 Latinos, 4,715 Japanese Americans, and 6,062 whites. Of the people smoking at least 31 cigarettes per day, there were 759 African Americans, 788 Native Hawaiians, 800 Latinos, 2,305 Japanese Americans, and 3,970 whites.
df = _______
Trending nowThis is a popular solution!
Chapter 11 Solutions
Introductory Statistics
Additional Math Textbook Solutions
Calculus Volume 1
Elementary Statistics: Picturing the World (7th Edition)
Essentials of Statistics (6th Edition)
Introductory Statistics
Fundamentals of Statistics (5th Edition)
Elementary Statistics: Picturing the World (6th Edition)
- Select the statement below that gives an example of a statistic? A. According to census data, about 50,500 Oneida County residents identify as being a regular smoker. B. For every 9 male superheroes written about in comic books, there are 4 female superheroes. C. In a survey of 2,000 residents of Scotland, 257 identified as being natural redheads.arrow_forwardGiven that Cheryl is collecting data on car color, what type of data is she working with?arrow_forwardCholesterol levels (in mg/dL) were collected from a random sample of 24 patients two days after they had a heart attack. Cholesterol Levels (in mg/dL) 236 226 For the data shown above, find the following. Do not round any of your answers. a) Find the 5-number summary: 160 220 236 310 244 210 288 294 276 234 288 360 272 278 280 270 266 142 242 206 186 318arrow_forward
- In marketing children’s products, it is extremely important to produce television commercials that hold the attention of the children who view them. A psychologist hired by a marketing research firm wants to determine whether differences in attention span exist among advertisements for different types of products. A number of children under 10 years of age are asked to watch one 60-second commercial for one of three types of products, and their attention spans are measured in seconds. The results are shown in the accompanying table: Type of Product Advertised Toys/Games Food/Candy Children’s Clothing 42 55 30 45 58 35 48 52 42 40 60 32 50 57 38 c). Explain the significance of the Tukey’s analysis and how it works. Explain all aspects of the analysis very carefully. d). At 5% level of significance, use the Tukey’s multiple comparison method to determine which types of product differ in terms of the actual average attention span.…arrow_forwardThe following monthly salaries for supervisors from six different counties were reported: $5456 (Kern), $5166 (Monterey), $4443 (Santa Cruz), $4129 (Santa Barbara), $2600 (Placer), and $2220 (Merced). San Luis Obispo County supervisors are supposed to be paid the average of the two counties among these six in the middle of the salary range. (a) Which measure of center determines this salary? medianmean What is its value? (Enter your answer as a whole number.)$ (b) Why is the other measure of center featured in this section not as favorable to these supervisors (although it might appeal to taxpayers)? Since the median salary is smaller, the median salary is less favorable to the supervisors.Since the mean salary is smaller, the mean salary is less favorable to the supervisors.arrow_forwardA recent health survey 500 single young men yielded the following information: 385 were a member of a sports club, 155 were vegetarian, and 30 declined to answer the survey’s questions. What percent of the men were both members of a sports club and vegetarian? Draw a Venn diagram to illustrate the result of the survey.arrow_forward
- The Math coordinator at Houston Community College collected the following data from first and second year students enrolled in the department's Spring classes. Any given student could only have been enrolled in one course. First year (A) Second year (B) Total MATH 1324 (X) 31 15 46 ΜΑΤΗ 1314 (Y) 43 36 79 ΜΑΤΗ 1332 ( ) 25 52 77 Total 99 103 202 Use the table above to answer the following: a. If a student is selected at random, what is the probability the student is a first year or a second year student? b. If a student is selected at random, what is the probability the student is not taking MATH 1324 and is not taking MATH 1332? c. If a student is selected at random, what is the probability the student is not taking MATH 1324 or is not taking MATH 1332? d. Compute P(XUA) e. Compute P(Y N BC)arrow_forwardThe average annual premium for automobile insurance in the US is $1503. The following annual premiums are representative of the website's findings for Michigan state. $1905, $2370, $2184, $2981, $2725, $2545, $2332, $2627, $2677, $2529, $3112, $2857, $2600, $2442, $2545, $2675, $2962, $2312, $2525, $2115 a) Provide a point estimate of the mean automobile insurance premium in Michigan. b) Develop a 95% confidence interval for the mean annual automobile insurance premium in Michigan. c) Does the 95% confidence interval for the annual automobile insurance premium in Michigan include the national average for the US? Interpret the relationship between auto insurance premiums in Michigan and the national average.arrow_forwardAn article reported the estimated percentage of U.S. households with only wireless phone service (no landline) for the 50 states and the District of Columbia. In the accompanying data table, each state was also classified into one of three geographical regions—West (W), Middle states (M), and East (E). Wireless % Region State Wireless % Region State 43.4 M AL 40.9 W MT 39.6 W AK 46.6 M NE 49.3 W AZ 48.5 W NV 56.2 M AR 43.5 M ND 42.9 W CA 31.2 E NH 50.5 W CO 25.2 E NJ 26.8 E CT 46.9 W NM 29.4 E DE 31.1 E NY 49.7 E DC 42.8 E NC 47.7 E FL 45.8 E OH 45.9 E GA 50.5 M OK 38.4 W HI 47.1 W OR 56.1 W ID 30.0 E PA 45.8 M IL 34.7 E RI 47.6 M IN 49.6 E SC 50.8 M IA 41.4 M SD 51.5 M KA 46.6 M TN 47.1 M KY 54.6 M TX 40.8 M LA 52.1 W UT 40.7 E ME 41.0 E VA 36.1 E MD 37.1 E VT 31.5 E MA 48.4 W WA 47.7 M MI 37.2 E WV 43.0 M MN 46.5 M WI 55.1 M MS 51.8 W WY 51.6 M MO (a) Construct a comparative boxplot that makes it possible to compare…arrow_forward
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill