Ten Lessons in Introductory Sociology2nd EditionKenneth A. Gould; Tammy L. Lewis Publisher: Oxford University Press Academic USISBN: 9780190663872
Ten Lessons in Introductory Sociology
Solutions for Ten Lessons in Introductory Sociology
Problem 1SE:
Ages A study of all the students at a small college showed a mean age of 20.7 and a standard...Problem 2SE:
Units A survey of 100 random full-time students at a large university showed the mean number of...Problem 3SE:
Exam Scores The distribution of the scores on a certain exam is N(70, 10), which means that the exam...Problem 4SE:
Exam Scores The distribution of the scores on a certain exam is N(70, 10), which means that the exam...Problem 6SE:
Cellphone Calls Answers.com claims that the mean length of all cell phone conversations in the...Problem 7SE:
Retirement Income Several times during the year, the U.S. Census Bureau takes random samples from...Problem 8SE:
Time Employed A human resources manager for a large company takes a random sample of 50 employees...Problem 11SE:
Babies Weights (Example 2) Some sources report that the weights of full-term newborn babies have a...Problem 12SE:
Babies’ Weights, Again Some sources report that the weights of full-term newborn babies have a mean...Problem 15SE:
CLT Shapes (Example 4) One of the histograms is a histogram of a sample (from a population with a...Problem 18SE:
Student Ages The mean age of all 2550 students at a small college is 22.8 years with a standard...Problem 24SE:
Random Numbers If you take samples of 40 lines from a random number table and find that the...Problem 25SE:
t* (Example 8) A researcher collects one sample of 27 measurements from a population and wants to...Problem 26SE:
t* A researcher collects a sample of 25 measurements from a population and wants to find a 99...Problem 27SE:
Hamburgers (Example 9) A hamburger chain sells large hamburgers. When we take a sample of 30...Problem 28SE:
Drinks A fast-food chain sells drinks that it calls HUGE. When we take a sample of 25 drinks and...Problem 29SE:
Men’s Pulse Rates (Example 10) A random sample of 25 men’s resting pulse rates shows a mean of 72...Problem 33SE:
Confidence Interval Changes State whether each of the following changes would make a confidence...Problem 34SE:
Confidence Interval Changes State whether each of the following changes would make a confidence...Problem 35SE:
Potatoes The weights of four randomly and independently selected bags of potatoes labeled 20 pounds...Problem 36SE:
Tomatoes The weights of four randomly and independently selected bags of tomatoes labeled 5 pounds...Problem 37SE:
Human Body Temperatures (Example 12) A random sample of 10 independent healthy people showed the...Problem 38SE:
Reaction Distance Data on the disk and website show reaction distances in centimeters for the...Problem 39SE:
Potatoes Use the data from exercise 9.35. a. If you use the four-step procedure with a two-sided...Problem 40SE:
Tomatoes Use the data from exercise 9.36. a. Using the four-step procedure with a two-sided...Problem 41SE:
Cholesterol In the U.S. Department of Health has suggested that a healthy total cholesterol...Problem 42SE:
BMI A body mass index (BMI) of more than 25 is considered unhealthy. The Minitab output given is...Problem 43SE:
Male Height In the United States, the population mean height for 3-year-old boys is 38 inches...Problem 45SE:
GPAs Thirty GPAs from a randomly selected sample of statistics students at Oxnard College are...Problem 47SE:
GPAs Using the data from Exercise 9.45 on GPAs, find a 95 confidence interval for the mean GPA....Problem 49SE:
Atkins Diet Difference Ten people went on an Atkins diet for a month. The weight losses experienced...Problem 50SE:
Pulse Difference The following numbers are the differences in pulse rate (beats per minute) before...Problem 51SE:
Student Ages Suppose that 200 statistics students each took a random sample (with replacement) of 50...Problem 52SE:
Presidents’ Ages at Inauguration A 95 confidence interval for the ages of the first six presidents...Problem 55SE:
Televisions: CI (Example 14) Minitab output is shown for a two-sample t-interval for the number of...Problem 56SE:
Pulse and Gender: CI Using data from NHANES, we looked at the pulse rate for nearly 800 people to...Problem 57SE:
Televisions (Example 15) The table shows the Minitab output for a two-sample t-test for the number...Problem 58SE:
Pulse Rates Using data from NHANES, we looked at the pulse rates of nearly 800 people to see whether...Problem 59SE:
Triglycerides Triglycerides are a form of fat found in the body. Using data from NHANES, we looked...Problem 60SE:
Systolic Blood Pressures When you have your blood pressure taken, the larger number is the systolic...Problem 61SE:
Triglycerides, Again Report and interpret the 95 confidence interval for the difference in mean...Problem 62SE:
Blood Pressures, Again Report and interpret the 95 confidence interval for the difference in mean...Problem 63SE:
Clothes Spending A random sample of 14 college women and a random sample of 19 college-men were...Problem 64SE:
College Athletes’ Weights A random sample of male college baseball players and a random sample of...Problem 66SE:
College Athletes’ Weights In exercise 9.64, you could reject the null hypothesis that the mean...Problem 67SE:
Textbook Prices, UCSB vs. CSUN (Example 16) The prices of a sample of books at University of...Problem 68SE:
Textbook Prices. OC vs. CSUN The prices of a random sample of comparable (matched) textbooks from...Problem 69SE:
Females’ Pulse Rates before and after a Fright (Example 17) In a statistics class taught by one of...Problem 70SE:
Males’ Pulse Rates before and after a Fright Follow the instructions for exercise 9.69, but use the...Problem 71SE:
Organic Food A student compared organic food prices at Target and Whole Foods. The same items were...Problem 72SE:
Smoking Mothers The birth weights of 35 babies whose mothers did not smoke and 22 babies whose...Problem 73SE:
Ages of Brides and Grooms Data for the ages of grooms and their brides for a random sample of 31...Problem 74SE:
Surfers Surfers and statistics students Rex Robinson and Sandy Hudson collected data on the number...Problem 75SE:
Self-Reported Heights of Men (Example 18) A random sample of students at Oxnard College reported...Problem 76SE:
Eating Out Jacqueline Loya, a statistics student, asked students with jobs how many times they went...Problem 77SE:
9.77, 9.79, and 9.80 For these questions, the data set is given at this text's website. Assume that...Problem 79SE:
9.77, 9.79, and 9.80 For these questions, the data set is given at this text's website. Assume that...Problem 80SE:
9.77, 9.79, and 9.80 For these questions, the data set is given at this text's website. Assume that...Problem 81CRE:
Choose a test for each situation: one-sample t-test, two-sample t-test, paired t-test. and no...Problem 82CRE:
Choose a t-test for each situation: one-sample t-test, two-sample t-test, paired t-test, and no...Problem 83CRE:
Cones: 3 Tests A McDonald’s fact sheet says its cones should weigh 3.18 ounces (converted from...Problem 85CRE:
Brain Size Brain size for 20 random women and 20 random men was obtained and is reported in the...Problem 87CRE:
Heart Rate before and after Coffee Elena Lucin, a statistics student, collected the data in the...Problem 88CRE:
Exam Grades The final exam grades for a sample of day-time statistics students and evening...Problem 89CRE:
Hours of Television Viewing The number of hours per week of television viewing for random samples of...Problem 90CRE:
Reaction Distances Reaction distances in centimeters for a random sample of 40 college students were...Problem 91CRE:
Shift Sleep Hours A survey was done comparing the number of hours of sleep for workers on the day...Problem 93CRE:
Maximum Tax Rate A random sample of 10 Democrats and 10 Republicans were asked what is the largest...Problem 95CRE:
Groceries The table shows the prices of identical groceries at 7-Eleven and at Vons. a. Test the...Problem 96CRE:
Parents The following table shows the heights (in inches) of a random sample of students and their...Problem 97CRE:
Why Is n1 in the Sample Standard Deviation? Why do we calculate s by dividing by n1, rather than...Browse All Chapters of This Textbook
Chapter 1 - Introduction To DataChapter 2 - Picturing Variation With GraphsChapter 3 - Numerical Summaries Of Center And VariationChapter 4 - Regression Analysis: Exploring Associations Between VariablesChapter 5 - Modeling Variation With ProbabilityChapter 6 - Modeling Random Events: The Normal And Binomial ModelsChapter 7 - Survey Sampling And InferenceChapter 8 - Hypothesis Testing For Population ProportionsChapter 9 - Inferring Population MeansChapter 10 - Associations Between Categorical Variables
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