1 Statistics And The Scientific Method 2 Using Surveys And Experimental Studies To Gather Data 3 Data Description 4 Probability And Probability Distributions 5 Inferences About Population Central Values 6 Inferences Comparing Two Population Central Values 7 Inferences About Population Variances 8 Inferences About More Than Two Population Central Values 9 Multiple Comparisons 10 Categorical Data 11 Linear Regression And Correlation 12 Multiple Regression And The General Linear Model 13 Further Regression Topics 14 Analysis Of Variance For Completely Randomized Designs 15 Analysis Of Variance For Blocked Designs 16 The Analysis Of Covariance 17 Analysis Of Variance For Some Fixed-, Random-,and Mixed-effects Models 18 Split-plot, Repeated Measures, And Crossover Designs 19 Analysis Of Variance For Some Unbalanced Designs expand_more
4.1 Introduction And Abstract Of Research Study 4.2 Finding The Probability Of An Event 4.3 Basic Event Relations And Probability Laws 4.4 Conditional Probability And Independence 4.5 Bayes’ Formula 4.6 Variables: Discrete And Continuous 4.7 Probability Distributions For Discrete Random Variables 4.8 Two Discrete Random Variables: The Binomial And The Poisson 4.9 Probability Distributions For Continuous Random Variables 4.10 A Continuous Probability Distribution: The Normal Distribution 4.11 Random Sampling 4.12 Sampling Distributions 4.13 Normal Approximation To The Binomial 4.14 Evaluating Whether Or Not A Population Distribution Is Normal 4.15 Research Study: Inferences About Performance-enhancing Drugs Among Athletes 4.16 R Instructions 4.17 Summary And Key Formulas 4.18 Exercises expand_more
Problem 1E: Indicate which interpretation of the probability statement seems most appropriate. a. A casino in... Problem 2E: If you are having a stroke, it is critical that you get medical attention right away. Immediate... Problem 3E: In reporting highway safety, the National Highway Traffic Safety Administration (NHTSA) reports the... Problem 4E: In a cable TV program concerning the risk of travel accidents, it was stated that the chance of a... Problem 5E: The gaming commission in its annual examination of the casinos in the state reported that all... Problem 8E: The state vehicle inspection bureau provided the following information on the percentage of cars... Problem 9E: The Texas Lottery has a game, Daily 4, in which a player pays 1 to select four single-digit numbers.... Problem 10E: A die is rolled two times. Provide a list of the possible outcomes of the two rolls in this form:... Problem 11E: Refer to Exercise 4.10. Assume that the die is a fair die, that is, each of the outcomes has a... Problem 12E: Refer to Exercise 4.11. a. Describe the event that is the complement of event A. b. Compute the... Problem 13E: Refer to Exercise 4.11. a. Are events A and B mutually exclusive? b. Are events A and C mutually... Problem 14E: A credit union takes a sample of four mortgages each month to survey the homeowners satisfaction... Problem 15E: A nuclear power plant has double redundancy on the feedwater pumps used to remove heat from the... Problem 16E: The population distribution in the United States based on race/ethnicity and blood type as reported... Problem 17E: The makers of the candy MMs report that their plain MMs are composed of 15% yellow, 10% red, 20%... Problem 18E: Refer to Exercise 4.11. Compute the following probabilities: a. P(A|B) b. P(A|C) c. P(B|C) 4.11... Problem 19E Problem 20E Problem 21E: Refer to Exercise 4.16. Let W be the event that the donor is white, B be the event that the donor is... Problem 22E: Is it possible for events A and B to be both mutually exclusive and independent? Justify your... Problem 23E: A survey of 1,000 U.S. government employees who have an advanced college degree produced the... Problem 24E: Refer to Exercise 4.23. Define the following events. Event A: A randomly selected government... Problem 25E Problem 26E: A large corporation has spent considerable time developing employee performance rating scales to... Problem 27E: The utility company in a large metropolitan area finds that 70% of its customers pay a given monthly... Problem 28E Problem 29E: Of a finance companys loans, 1% are defaulted (not completely repaid). The company routinely runs... Problem 30E: Refer to Exercise 4.29. Show that the posterior probability of default, given a fair risk, equals... Problem 31E Problem 32E: In Example 4.4, compute the probability that the test incorrectly identifies the defects D1, D2, and... Problem 33E Problem 34E: In a January 15, 1998, article, the New England Journal of Medicine (338:141146) reported on the... Problem 35E Problem 36E: Classify each of the following random variables as either continuous or discrete: a. The survival... Problem 37E Problem 38E: Texting while driving is a very dangerous practice. An electronic monitoring device is installed on... Problem 39E Problem 40E: The numbers of cars failing an emissions test on randomly selected days at a state inspection... Problem 41E: A traditional call center has a simple mission: Agents have to answer customer calls fast and end... Problem 42E: A biologist randomly selects 10 portions of water, each equal to .1 cm3 in volume, from the local... Problem 43E: Examine the accompanying newspaper clipping. Does this sampling appear to satisfy the... Problem 44E: A survey is conducted to estimate the percentage of pine trees in a forest that are infected by the... Problem 45E: In an attempt to decrease drunk driving, police set up vehicle checkpoints during the July 4... Problem 46E: The quality control department examines all the products returned to a store by customers. An... Problem 47E Problem 48E: The CFO of a hospital is concerned about the risk of patients contracting an infection after a... Problem 49E: Suppose the random variable y has a Poisson distribution. Compute the following probabilities: a.... Problem 50E: Customers arrive at a grocery store checkout at a rate of six per 30 minutes during the hours of 5... Problem 51E: A firm is considering using the Internet to supplement its traditional sales methods. Using data... Problem 52E Problem 53E Problem 54E Problem 55E Problem 56E Problem 57E Problem 58E Problem 59E Problem 60E Problem 61E: In Exercises 4.57 through 4.63, let z be a random variable with a standard normal distribution. 4.61... Problem 62E Problem 63E Problem 64E Problem 65E: Let y be a random variable having a normal distribution with a mean equal to 250 and a standard... Problem 66E: Suppose that y is a random variable having a normal distribution with a mean equal to 250 and a... Problem 67E: Suppose that z is a random variable having a standard normal distribution. a. Find a value z0, such... Problem 68E Problem 69E: Records maintained by the office of budget in a particular state indicate that the amount of time... Problem 70E: The College Boards, which are administered each year to many thousands of high school students, are... Problem 71E: Monthly sales figures for a particular food industry tend to be normally distributed with a mean of... Problem 72E: Refer to Exercise 4.70. An honor society wishes to invite those scoring in the top 5% on the College... Problem 73E Problem 74E Problem 75E: A psychologist is interested in studying women who are in the process of obtaining a divorce to... Problem 76E Problem 77E: A random sample of 16 measurements is drawn from a population with a mean of 60 and a standard... Problem 78E Problem 79E: Psychomotor retardation scores for a particular group of manic-depressive patients have... Problem 80E: Federal resources have been tentatively approved for the construction of an outpatient clinic. In... Problem 81E: Refer to Exercise 4.80. What size facility should be built so the probability of the patient loads... Problem 82E: Based on the 1990 census, the number of hours per day adults spend watching television is... Problem 83E: The level of a particular pollutant, nitrogen oxide, in the exhaust of a hypothetical model of car,... Problem 84E: Refer to Exercise 4.83. A company has a fleet of 150 Polluters used by its sales staff. Describe the... Problem 85E: The baggage limit for an airplane is set at 100 pounds per passenger. Thus, for an airplane with 200... Problem 86E: A patient visits her doctor with concerns about her blood pressure. If the systolic blood pressure... Problem 87E: Critical key-entry errors in the data processing operation of a large district bank occur... Problem 88E Problem 89E: Let y be a binomial random variable with n = 10 and = .5. a. Calculate P(4 y 6). b. Use a normal... Problem 90E Problem 91E: A marketing research firm advises a new client that approximately 15% of all persons sent a... Problem 92E Problem 93E: Suppose a population consists of the 10 measurements (2, 3, 6, 8, 9, 12, 25, 29, 39, 50). Generate... Problem 94E: The fracture toughness in concrete specimens is a measure of how likely it is that blocks used in... Problem 95SE: One way to audit expense accounts for a large consulting firm is to sample all reports dated the... Problem 96SE: The breaking strengths for 1-foot-square samples of a particular synthetic fabric are approximately... Problem 97SE: Refer to Exercise 4.96. Suppose that a new synthetic fabric has been developed that may have a... Problem 98SE: Refer to Exercise 4.97. Suppose that the mean breaking strength for the sample of 15 1-foot sections... Problem 99SE Problem 100SE Problem 101SE: Experts consider high serum cholesterol levels to be associated with an increased incidence of... Problem 102SE Problem 103SE Problem 104SE Problem 105SE Problem 106SE Problem 107SE: Refer to Exercise 4.106. Plot the sampling distribution of the sample median of Exercise 4.106. a.... Problem 108SE: Random samples of size 5, 20, and 80 are drawn from a population with a mean of = 100 and a... Problem 109SE Problem 110SE: Suppose the probability that a major earthquake occurs on a given day in Fresno, California, is 1 in... Problem 111SE Problem 112SE: Airlines overbook (sell more tickets than there are seats) flights, based on past records that... Problem 113SE Problem 114SE: As part of a study to determine factors that may explain differences in animal species relative to... format_list_bulleted