Discrete or continuous? The number of patients who reported that a new drug had relieved their pain.
Q: Two surgical procedures are widely used to treat a certain type of cancer. To compare the success…
A: The margin of error is 0.10 with 95% reliability.
Q: n a recent study, a scientist was interested in investigating whether there is a significant…
A: Dependent variable: The dependent variable represents the output based on the values of independent…
Q: Sloane conducted a study on years of completed education and income at age 40. She found that for…
A: In the given case, the researcher obtained the income of a sample of 40 years olds and their…
Q: Hurricanes Katrina and Rita caused the flooding of large parts of New Orleans, leaving behind large…
A:
Q: Help!!
A: Correlation is defined as the linear relationship between the two variables. If one variable…
Q: Many people take ginkgo supplements advertised to improve memory. Are these over-the- counter…
A: The variable is taking a pill 3 times a day for 6 weeks. There are two groups which are treatment…
Q: A survey item administered at the end of a training program asked participants their opinion about…
A: The row and column totals for the given contingency table is, The degree of freedom is,
Q: Postpartum depression and anxiety (PPD), is a common medical condition affecting mothers and their…
A:
Q: Please check my answer.
A: The results of the study might be likely due to confounding because there could be other factors at…
Q: Imagine a study with the following variables: Response variable 1 = score on the 100-question…
A: In statistics, we have two types of variables, independent variables, and dependent variables. based…
Q: The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale…
A: Using the linear regression line:y^=8.62−0.31x a) When the gas score x= 6.3y^=8.62−0.31∗6.3=6.67…
Q: A study was conducted to explore the relationship between a girl's birth order and her chance of…
A:
Q: The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For…
A: We have to find we can support claim or not.
Q: The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale…
A: Given regression equation:=> ŷ = 8.48-0.29xwhere, x= GAS score ; ŷ= predicted sleep time,…
Q: How profitable are different sectors of the stock market? One way to answer such a question is to…
A: (a) Given that; n1=32, x¯1=13.2n2=33, x¯2=10σ1=4.2, σ2=2.6 We need to find a 95% confidence interval…
Q: You want to determine how many loaves of Bread are sold per day at Schat’s Bakery. You stand outside…
A: The sample mean is 421 loaves per day and the population mean is 395 loaves per day.
Q: Anernia (low healthy blood cells or hemoglobin) has an important role in exercise performance.…
A:
Q: hypothyroxinemia in premature infants is a cause of subsequent motor and cognitive abnormalities…
A: a) Excel Procedure: Enter X and Y data in Excel Go to Data Click on Data Analysis> ‘Regression’.…
Q: where's the spphomore?
A: The data of Sophomore is shown below X 19 18 23 24 21 26 25 26 20 30 25…
Q: alpha should be used? 4. Can you say with 95% confidence that Store 1 is producing sub sandwiches…
A: The data shows the sandwich measurements for three stores.
Q: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back…
A: Introduction: Denote μ1, μ2 as the true mean lower back pain levels before and after wearing the…
Q: BREAKFAST AND TEST SCORES 3 of 4 What is the observed z/t-score? Conventional wisdom says that…
A: we have given test scores summary of two groups 1st one is who did not eat breakfast and 2nd one is…
Q: What does it mean when one of the two main effects is significant?
A: Given problem Given that What does it mean when one of the two main effects is significant ?
Q: A researcher wishes to try three different techniques to lower the blood pressure of individuals…
A:
Q: A researcher want to know if there is a relationship between sleep and anxiety. The researcher…
A: For random variables X and Y the value of SP is, SP = Σ (x – x̅)(y – ȳ), where x̅ is the mean of X…
Q: The analgesic effects of music are well known, but most of the studies have been done with adults…
A: Given: The analgesic effects of music are well known, but most of the studies have been done with…
Q: Show All Work: In a sample of 350 respondents who identify as either a case manager or a clinician,…
A: Given,Total no.of respondents=350
Q: . Look at the graph "Black small businesses hit twice as hard as white ones". Estimate the percent…
A: Based on the graph given we can estimate the percentage of white and black small business owners and…
Q: We travelled back in time and discover the true reason that dinosaurs went extinct-they started…
A: Given: Total dinosaurs=3797Number of dinosaurs smoked=2341Number of dinosaurs who smoked and died of…
Q: (b) What proportion of women have blood pressures between 73 mmHg and 91 mmHg ?…
A:
Q: hich statement is correct? Group of answer choices There is no overlap between the 95% confidence…
A: Group 1 Group 2 Group 3 Successful tasks 90 130 150
Q: A researcher evaluated the effectiveness of relaxation training in reducing anxiety. One sample of…
A: The objective is to solve the given set of problems based on research evaluating the effectiveness…
Q: 2. A psychologist uses a treatment method called Cognitive Behavioral Therapy (CBT) to help reduce…
A: Given, μd = 35 Sample mean: Md = 8.2 Sample standard deviation: sd = 426.3^0.5 = 20.65 n = 30
Q: A study reported in the Journal of the America Medical Association investigated the cardiac demands…
A: Basic concepts of mathematical statistics are used.
Q: Investigators are trying to determine if the contamination of a town well led to significant…
A: Given Information: Before shut down of contaminated well: There were x1=16 birth defects among…
Q: 1. A study entitled "Humeral hypertrophy in response to exercise" written by H.J. Jones and…
A: As per guidelines we will only answer first three subparts, please repost other subparts for more…
Discrete or continuous? The number of patients who reported that a new drug had relieved their pain.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- You take a survey that is supposed to measure whether you are an extrovert or not. The score you get on the extrovert survey is a z-score of 2.0. What does that mean about your level of extraversion compared to the average score?Please do not give solution in image format thanku One issue is that some patients experience side effects and have to discontinue treatment. It was estimated that 19% of patients receiving lnterleukin-2 plus vaccine developed an arrhythmia (irregular heartbeat) and had to discontinue treatment. Since the side effect was attributable to the vaccine, assume that the patients would continue to take lnterleukin-2 if arrhythmia developed but not the vaccine and that the probability of a positive response to treatment would be the same as group A (i.e., 6%). Suppose we have 10 patients who receive Interleukin- 2 plus vaccine of whom 2 develop arrhythmia and 8 do not. What is the probability that exactly 3 of the 10 patients will get a positive response to treatment?The well-known psychologist Dr. Elbod has established what he calls his Generalized Anxiety Scale (GAS). The GAS, which is a scale from 0 to 10, measures the "general anxiety" of an individual, with higher GAS scores corresponding to more anxiety. (Dr. Elbod's assessment of anxiety is based on a variety of measurements, both physiological and psychological.) We're interested in making predictions about individuals' sleep behavior based on their GAS scores. The bivariate data below give the GAS score (denoted by x) and the number of hours of sleep last night (denoted by y) for each of the fifteen adults participating in a study. A scatter plot of the data is shown in Figure 1. Also given is the product of the GAS score and the sleep time for each of the fifteen adults. (These products, written in the column labelled "xy", may aid in calculations.) GAS score, x 00 2.1 3.6 8.0 3.8 7.0 9.1 5.0 5.9 9.1 1.5 6.5 4.0 3.0 8.0 Sleep time, y (in hours) 8.2 7.4 1.0 Send data to calculator 7.4 8.4…
- improvements to the experimental design?What scale should we use for the regressors? Expalain the reason?Pregnant women are screened for a birth defect called Down syndrome. Down syndrome babies are mentally and physically challenged. Some mothers choose to abort the fetus when they are certain that their baby will be born with the syndrome. The most common screening is maternal serum screening, a blood test that looks for markers in the blood to indicate whether the birth defect may occur. The false-positive and false-negative rates vary according to the age of the mother. Mother’s Age False-Positive Rate False-Negative RateUnder 30 0.040 0.37630-34 0.082 0.29035-37 0.178 0.269Over 38 0.343 0.029 The probability that a baby has Down syndrome is primarily a function of the mother’s age. The probabilities are listed here. Age Probability of Down Syndrome25 1/130030 1/90035 1/35040 1/10045 1/2549 1/12 For each of the age 25, 30, 35, 40, 45 and 49, determine the probability of Down syndrome if the maternity serum screening produces a…
- The average amount of money spent for lunch per person in the college cafeteria is $6.28 and the standard deviation is $2.92. Suppose that 8 randomly selected lunch patrons are observed. Assume the distribution of money spent is normal, and round all answers to 4 decimal placeswhere possible. What is the distribution of XX? XX~ N(,) What is the distribution of ¯xx¯? ¯xx¯~ N(,) For a single randomly selected lunch patron, find the probability that this patron's lunch cost is between $4.74 and $5.38. For the group of 8 patrons, find the probability that the average lunch cost is between $4.74 and $5.38. For part d), is the assumption that the distribution is normal necessary? NoYesArthritis is a very commonly occurring affliction. It is a major cause of lost work time and often results in serious disability. Of the many types of arthritis, the most common type is osteoarthritis. This condition is frequently due to wear and tear in the joints and is more likely to be found in people over 50. It is very painful in the weight-bearing joints, such as the knees and hips. Cartilage wears away on the bone ends, causing pain and swelling. Osteoarthritis may develop after an injury such as a bone fracture or a joint dislocation. To reduce the amount of time osteoarthritis patients are absent from work, it is important for them to have effective pain relief. An experiment was conducted to compare the effectiveness of three new analgesics: A1, A2, and A3. A clinic evaluated a large group of patients and identified 45 patients with a moderate level of pain. Fifteen of the 45 persons were then randomly assigned to one of the three analgesics. The patients were then…%19 | Question * A prospective cohort study was conducted to investigate the effects of Hormone Replacement Therapy (HRT) on coronary artery disease in post-menopausal women. The investigators calculated the incidence rate of coronary artery disease in post-menopausal women who had been taking HRT and compared it to the incidence rate in post-menopausal women who had not taken HRT. The findings are summarized in this table: Post-menopausal Hormone Use So, the rate ratio is 0.432 0.509 0.395 0.458 60 docs.google.com/form O Number of people with Corunary Artery Disease Person-Years of Disease-free Follow up 54310 51480 In the investigation of an epidemic of a fatal disease such as SARS, the most appropriate measure to describe the lethality of the disease is the: Case fatality rate Cause specific death rate Proportionate mortality rate Age specific death rate AY TO Ⓡ
