1 General Overview 2 Descriptive Statistics 3 Probability 4 Discrete Probability Distributions 5 Continuous Probability Distributions 6 Estimation 7 Hypothesis Testing: One-sample Inference 8 Hypothesis Testing: Two-sample Inference 9 Nonparametric Methods 10 Hypothesis Testing: Categorical Data 11 Regression And Correlation Methods 12 Multisample Inference 13 Design And Analysis Techniques For Epidemiologic Studies 14 Hypothesis Testing: Person-time Data expand_more
8.1 Introduction 8.2 The Paired T Test 8.3 Interval Estimation For The Comparison Of Means From Two Paired Samples 8.4 Two-sample T Test For Independent Samples With Equal Variances 8.5 Interval Estimation For The Comparison Of Means From Two Independent Samples (equal Variance Case) 8.6 Testing For The Equality Of Two Variances 8.7 Two-sample T Test For Independent Samples With Unequal Variances 8.8 Case Study: Effects Of Lead Exposure On Neurologic And Psychological Function In Children 8.9 Estimation Of Sample Size And Power For Comparing Two Means 8.10 The Treatment Of Outliers 8.11 Derivation Of Equation 8.12 Summary Chapter Questions expand_more
Problem 1P: Find the lower 2.5th percentile of an F distribution with 14 and 7 df. What symbol is used to denote... Problem 2P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 3P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 4P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 5P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 6P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 7P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 8P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 9P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 10P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 11P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 12P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 13P: The mean 1 sd of ln [calcium intake (mg)] among 25 females, 12 to 14 years of age, below the poverty... Problem 14P: Refer to the data in Table 2.13. Table 2.13 Hospital-stay data Test for a significant difference in... Problem 15P: Refer to the data in Table 2.13. What is the appropriate test procedure to test for significant... Problem 16P: Refer to the data in Table 2.13. Perform the procedure in Problem 8.15 using the critical-value... Problem 17P: Refer to the data in Table 2.13. What is the p-value corresponding to your answer to Problem 8.16?... Problem 18P: Refer to the data in Table 2.13. Compute a 95% CI for the true difference in mean white blood cell... Problem 19P: The drug diflunisal is used to treat mild to moderate pain due to osteoarthritis (OA) and rheumatoid... Problem 20P: The drug diflunisal is used to treat mild to moderate pain due to osteoarthritis (OA) and rheumatoid... Problem 21P: The drug diflunisal is used to treat mild to moderate pain due to osteoarthritis (OA) and rheumatoid... Problem 22P: The drug diflunisal is used to treat mild to moderate pain due to osteoarthritis (OA) and rheumatoid... Problem 23P: A study in Pittsburgh measured various cardiovascular risk factors in children at birth and during... Problem 24P: A study in Pittsburgh measured various cardiovascular risk factors in children at birth and during... Problem 25P: A 1980 study was conducted whose purpose was to compare the indoor air quality in offices where... Problem 26P: A 1980 study was conducted whose purpose was to compare the indoor air quality in offices where... Problem 27P: A 1980 study was conducted whose purpose was to compare the indoor air quality in offices where... Problem 28P: A camera has been developed to detect the presence of cataract more accurately. Using this camera,... Problem 29P: A camera has been developed to detect the presence of cataract more accurately. Using this camera,... Problem 30P: A camera has been developed to detect the presence of cataract more accurately. Using this camera,... Problem 31P Problem 32P Problem 33P Problem 34P: A possible important environmental determinant of lung function in children is the amount of... Problem 35P: A possible important environmental determinant of lung function in children is the amount of... Problem 36P: A possible important environmental determinant of lung function in children is the amount of... Problem 37P: A possible important environmental determinant of lung function in children is the amount of... Problem 38P Problem 39P: The degree of clinical agreement among physicians on the presence or absence of generalized... Problem 40P: The degree of clinical agreement among physicians on the presence or absence of generalized... Problem 41P: The degree of clinical agreement among physicians on the presence or absence of generalized... Problem 42P: The degree of clinical agreement among physicians on the presence or absence of generalized... Problem 43P: The degree of clinical agreement among physicians on the presence or absence of generalized... Problem 44P: Ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated with... Problem 45P: Ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated with... Problem 46P: Ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated with... Problem 47P: Ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated with... Problem 48P Problem 49P: A study was conducted of genetic and environmental influences on cholesterol levels. The data set... Problem 50P: A study was conducted of genetic and environmental influences on cholesterol levels. The data set... Problem 51P Problem 52P Problem 53P Problem 54P Problem 55P Problem 56P Problem 57P Problem 58P Problem 59P Problem 60P Problem 61P Problem 62P Problem 63P Problem 64P: A study was conducted [12] comparing muscle function between patients with rheumatoid arthritis (RA)... Problem 65P Problem 66P Problem 67P: A clinical trial compared percutaneous transluminal coronary angioplasty (PTCA) with medical therapy... Problem 68P Problem 69P Problem 70P: An experiment was conducted to examine the influence of avian pancreatic polypeptide (aPP),... Problem 71P: An experiment was conducted to examine the influence of avian pancreatic polypeptide (aPP),... Problem 72P: An experiment was conducted to examine the influence of avian pancreatic polypeptide (aPP),... Problem 73P Problem 74P Problem 75P Problem 76P Problem 77P Problem 78P: A study was performed looking at the effect of physical activity on cognitive function among adults... Problem 79P: A study was performed looking at the effect of physical activity on cognitive function among adults... Problem 80P: A study was performed looking at the effect of physical activity on cognitive function among adults... Problem 81P Problem 82P Problem 83P Problem 84P: Tennis elbow is a painful condition that afflicts many tennis players at some time. A number of... Problem 85P Problem 86P Problem 87P Problem 88P Problem 89P: A study compared mean electroretinogram (ERG) amplitude of patients with different genetic types of... Problem 90P: A study compared mean electroretinogram (ERG) amplitude of patients with different genetic types of... Problem 91P: A study compared mean electroretinogram (ERG) amplitude of patients with different genetic types of... Problem 92P: A study compared mean electroretinogram (ERG) amplitude of patients with different genetic types of... Problem 93P: A study compared mean electroretinogram (ERG) amplitude of patients with different genetic types of... Problem 94P Problem 95P Problem 96P Problem 97P Problem 98P Problem 99P: A study was performed to determine the effect of introducing a low-fat diet on hormone levels of 73... Problem 100P: A study was performed to determine the effect of introducing a low-fat diet on hormone levels of 73... Problem 101P: A study was performed to determine the effect of introducing a low-fat diet on hormone levels of 73... Problem 102P: A study was performed to determine the effect of introducing a low-fat diet on hormone levels of 73... Problem 103P: A study is being planned to assess whether a topical antiallergic eye drop is effective in... Problem 104P: A study is being planned to assess whether a topical antiallergic eye drop is effective in... Problem 105P Problem 106P Problem 107P: Left ventricular mass (LVM) is an important risk factor for subsequent cardiovascular disease. A... Problem 108P: Left ventricular mass (LVM) is an important risk factor for subsequent cardiovascular disease. A... Problem 109P Problem 110P Problem 111P Problem 112P: A study sought to demonstrate that soy beans inoculated with nitrogen-fixing bacteria yield more and... Problem 113P Problem 114P: A study sought to demonstrate that soy beans inoculated with nitrogen-fixing bacteria yield more and... Problem 115P Problem 116P Problem 117P: study was recently reported comparing the effects of different dietary patterns on blood pressure... Problem 118P: study was recently reported comparing the effects of different dietary patterns on blood pressure... Problem 119P: study was recently reported comparing the effects of different dietary patterns on blood pressure... Problem 120P: study was recently reported comparing the effects of different dietary patterns on blood pressure... Problem 121P: The Diabetes Prevention Study was a randomized study conducted in Finland in which middle-aged... Problem 122P Problem 123P Problem 124P Problem 125P Problem 126P Problem 127P Problem 128P: A study looked at the influence of retirement on the level of physical activity among people ages... Problem 129P: Cigarette smoking has important health consequences and is positively associated with heart and lung... Problem 130P: Cigarette smoking has important health consequences and is positively associated with heart and lung... Problem 131P: Cigarette smoking has important health consequences and is positively associated with heart and lung... Problem 132P: Cigarette smoking has important health consequences and is positively associated with heart and lung... Problem 133P: Cigarette smoking has important health consequences and is positively associated with heart and lung... Problem 134P Problem 135P Problem 136P Problem 137P Problem 138P Problem 139P Problem 140P Problem 141P Problem 142P Problem 143P Problem 144P Problem 145P Problem 146P: A study of genetic factors related to coronary heart disease (CHD) was performed as a substudy... Problem 147P: A study of genetic factors related to coronary heart disease (CHD) was performed as a substudy... Problem 148P: A study of genetic factors related to coronary heart disease (CHD) was performed as a substudy... Problem 149P Problem 150P Problem 151P Problem 152P Problem 153P Problem 154P Problem 155P Problem 156P: An individual has been exercising at a local gym for about 10 years. He always begins with a 10- to... Problem 157P Problem 158P: Suppose we have two groups with sample sizes of 8 and 15 Group 1 has a sample sd of 10.0 (n = 8)... Problem 159P: Suppose we have two groups with sample sizes of 8 and 15 Suppose that the mean in group 1 = 15.4 and... Problem 160P: Suppose we have two groups with sample sizes of 8 and 15 Suppose this study is a pilot study for a... Problem 161P: In a 5-year follow-up of bilateral stimulation of the subthalamic nucleus among 49 patients with... Problem 162P: In a 5-year follow-up of bilateral stimulation of the subthalamic nucleus among 49 patients with... Problem 163P: In a 5-year follow-up of bilateral stimulation of the subthalamic nucleus among 49 patients with... Problem 164P: The following data are from a study on Botox injections. Patients received a high-dose injection in... Problem 165P: The following data are from a study on Botox injections. Patients received a high-dose injection in... Problem 166P Problem 167P Problem 168P Problem 169P: The EPIC-Norfolk study, a study of diet and cancer in Great Britain, was performed to assess the... Problem 170P Problem 171P Problem 172P Problem 173P Problem 174P Problem 175P Problem 176P format_list_bulleted