Solutions for INTRODUCTORY STATISTICS (LOOSELEAF)
Problem 1SE:
In Exercises 11.1 and 11.2, for each situation, choose the appropriate test: one-sample t -test,...Problem 2SE:
In Exercises 11.1 and 11.2, for each situation, choose the appropriate test: one-sample t -test,...Problem 3SE:
Bonferroni Correction (Example 1) Suppose you have five groups of observations, and you do...Problem 5SE:
Apartment Rents Random samples of rents for 1-bedroom 1-bath apartments in Seattle, San Francisco,...Problem 7SE:
Gas Prices The website Gasbuddy.com reports the least expensive gas prices in some cities on a daily...Problem 8SE:
More Gas Prices The following table shows the least expensive gas prices for three cities on June 1,...Problem 11SE:
Gas Price Intervals Use the data from exercise 11.7 and find Bonferroni-corrected intervals for all...Problem 12SE:
Gas Price Intervals Use the data from exercise 11.8 and find Bonferroni-corrected intervals for all...Problem 14SE:
Baseball Position and Hits Use the data in the previous question to find all the pairwise confidence...Problem 15SE:
Comparing F -Values from Boxplots (Example 3) Refer to the figure. Assume that all distributions are...Problem 16SE:
Comparing F -Values from Boxplots Refer to the following figure. Assume that all data sets are...Problem 17SE:
Marital Status and Cholesterol (Example 4) Refer to the StatCrunch output from National Health and...Problem 18SE:
Marital Status and Blood Pressure Test the hypothesis that people with different marital statuses...Problem 19SE:
Schoolwork and Class (Example 5) A random survey was done at a small Lutheran college, and the...Problem 20SE:
TV Hours A random survey was done at a small Lutheran college, and the students were asked how many...Problem 21SE:
Schoolwork and Class Use the information for exercise 11.19. a. Which class had the highest sample...Problem 22SE:
TV Hours Use the information for exercise 11.20. a. Which class had the highest sample mean number...Problem 25SE:
Schoolwork Again Go back to the information in exercise 11.19. Assuming the conditions for ANOVA are...Problem 26SE:
TV Hours Again Go back to the information in exercise 11.20. Assuming the conditions for ANOVA are...Problem 27SE:
Pulse Rates (Example 6) Pulse rates were taken for five people, each in three different situations:...Problem 28SE:
UCLA Music Survey The figure shows side-by-side box-plots of the number of hours per week that...Problem 29SE:
Commute Times by Method A survey was given to StatCrunch users on the length of time for commuting...Problem 30SE:
Gas Price ANOVA Based on the following output, would it be appropriate to use ANOVA to determine if...Problem 31SE:
Apartment Rents (Example 7) Samples of rents for one-bedroom, one-bath apartments in three cities...Problem 32SE:
Study Hours by Major Three independent random samples of full-time college students were asked how...Problem 33SE:
Salary by Type of College Information was gathered on the starting median salary for students who...Problem 34SE:
Draft Lottery When the draft lottery for military service in the Vietnam War was conducted,...Problem 35SE:
Reaction Times for Athletes A random sample of people were asked whether they were athletic,...Problem 36SE:
Tomato Plants and Colored Light Jennifer Brogan, a biology student who was taking a statistics...Problem 37SE:
GPAs by Seating Choice A random sample of students was studied. Whether the student chose to sit in...Problem 38SE:
Reading Comprehension Sixty-six reading students were randomly assigned to be taught using one of...Problem 39SE:
Hours of Steep and Health Status In a study done on a random sample of employees at a company, the...Problem 40SE:
Happiness and Age Category StatCrunch surveyed users on happiness. Each respondent scored herself or...Problem 42SE:
House Prices Tukey HSD confidence intervals (with an overall significance level of 0.05) were...Problem 43SE:
GPA and Row (Example 8) A random sample of students was studied. Whether the student chose to sit in...Problem 44SE:
Reading Scores by Teaching Method Refer to exercise 11.38 to find the data. Follow the instructions...Problem 45SE:
Reaction Distances Use the data given in exercise 11.35. Follow the instructions given in exercise...Problem 46SE:
Study Hours Use the data given in exercise 11.32. Follow the instructions given in exercise 11.43.Problem 48SE:
Tomatoes Use the data given in exercise 11.36. Follow the instructions given in exercise 11.43.Problem 49SE:
Concern over Nuclear Power Following the large-scale nuclear power plant failure in Japan, a...Problem 50SE:
Social Media Use A StatCrunch survey asked respondents how much time they spent daily on various...Problem 51CRE:
Happiness and Age Consider the data from the happiness survey (see exercise 11.40). If you do a...Problem 52CRE:
GPA and Row Number Suppose you collect data on GPAs by classroom row in which the student chose to...Problem 53CRE:
Contacting Mother Professors of ethics (Eth), professors of philosophy (Phil), and professors in...Problem 54CRE:
Ideal Percentage to Charity Professors of ethics (Eth), professors of philosophy (Phil), and...Problem 55CRE:
Actual Percentage to Charity Professors of ethics (Eth), professors of philosophy (Phil), and...Problem 56CRE:
Hours of Television by Age Group The StatCrunch output shows the ANOVA results for testing whether...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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