An efficacy study was conducted for the drug pamidronate in patients with stage III multiple myeloma and at leas one lytic lesion. In this randomized clinical trial, patients were assigned at random to receive either pamidronate placebo. One endpoint reported was the occurrence of any skeletal events after 9 cycles of treatment or non- occurrence. Treatment Group Pamidronate Placebo Occurrence of Skeletal Event Yes 47 74 121 No 149 107 256 196 181 377 What percent of patients received pamidronate? What percent of patients experienced the occurrence of any skeletal events?
Q: Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these…
A: Given,
Q: earcher to believe that anemia is less prevalent among women in the first country than among women…
A:
Q: Autism and Maternal Antidepressant Use A recent study41 compared 298 children with Autism Spectrum…
A:
Q: A case–control study of patients on antihypertensive drugs related an increased risk of myocardial…
A: As we know that formula for c.i is given by CI = (p1-p2) ± z*se
Q: A researcher studied iron-deficiency anemia in women in each of two developing countries.…
A:
Q: A new approach to prenatal care is proposed for pregnant women living in a rural community. The new…
A: Given, The data sets are: Usual care : 8 7 6 2 5 8 7 3 New Program : 9 9 7 8 10 9 6…
Q: Subject Treatmen Gender Fam-Hist Age BP-Before-Exp BP-After-Exp D1 1 F PS 65 103.3 80.5 1 F 1 M D2 N…
A: A data can be raw or grouped, with some pro and cons associated with both of them. The raw data has…
Q: In a clinical trial, 17 out of 900 patients taking a prescription drug complaint of flu like…
A: From the provided information, Sample size (n) = 900 Out of which 17 patients taking a prescription…
Q: A new drug to treat psoriasis has been developed and is in clinical testing. Assume that those…
A: The test hypotheses are given below: Null hypothesis: H0:p1=0.02,p2=0.77,p3=0.16,p4=0.05 Alternative…
Q: Autism and Maternal Antidepressant Use A recent study41 compared 298 children with Autism Spectrum…
A:
Q: A clinical trial is conducted to compare an experimental medication to placebo to reduce the…
A:
Q: Please answer questions 2 and 8
A: QUESTION 2Step 1: State the null and alternative hypotheseslet:p1 = proportion of infants using…
Q: In the past 10 years, the prevalence of peanut allergies has doubled in Western countries. Is…
A: No. of infants in the avoidance group, No. of infants who developed a peanut allergy, No. of infants…
Q: In the last 10 years, the prevalence of peanut allergies has doubled in Western countries. Is…
A: As per guidelines we will only answer first three subparts, please repost other subparts for more…
Q: Is Echinacea Effective for Colds? Rhinoviruses typically cause common colds. In a test of the…
A: a)State the test hypotheses.Let the first population denote the Echinacea group and the second…
Q: The paper "Supervised Exercise Versus Non-Supervised Exercise for Reducing Weight in Obese Adults†…
A: Given the table of experimental.....
Q: NCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24 Title of the article: After Menopause,…
A: Given that: One wishes to study whether BMI or Frequent Mammography affects Breast Cancer Rates.
Q: A clinical trial is conducted to compare an experimental medication to placebo to reduce the…
A: This is two proportions Z-test. Rejection criteria: Reject the null hypothesis if |Z|>Zc at 0.05…
Q: A clinical trial is conducted to compare an experimental medication to placebo to reduce the…
A: Question 13 The test statistic is 2.64, and critical value is 1.96. Decision rule: If test statistic…
Q: OxyContin The drug OxyContin (oxycodone) is used to treat pain, but it is dangerous because it is…
A: Solution:Given that,Level of significance = 0.05Sample size(x) = 52Total (n) =227
Q: A pathological video game user (PVGU) is a video game user that averages 31 or more hours a week of…
A: Here use binomial theorem P = 0.09 q = 0.91 n = 5
Q: A randomized controlled trial was designed to evaluate the effectiveness of a new drug treatment on…
A: Solution: From the given information, a randomized controlled trial was designed to evaluate the…
Q: When more severely ill patients are treated with a particular therapy, which of the following…
A: when more severely ill patients are treated with a particular therapy. choose the result of the…
Q: According to a research study, people are able to better manage their time when they wear watches…
A: Part A: Consider the null and alternative hypotheses as follows: Null hypothesis: H0: There is no…
Q: A clinical trial is conducted to compare an experimental medication to placebo to reduce the…
A:
Q: earcher to believe that anemia is less prevalent among women in the first country than among women…
A: Given that Sample sizes n1=1900 , n2=1800 Favorable cases x1=441, x2=461 NOTE:- According to…
Q: o combat antibiotic resistance, the Quality Improvement Consortium recommends a throat swab to…
A: (a-1) According to the provided data, the null and alternative hypotheses are; Therefore, the first…
Q: what is the null hypothesis and alternative hypothesis for this scenario: The efficacy of a new…
A: Let the random variable X represent the obsessive compulsive drinking scores and the subscripts 1…
Q: ad, or the amount of HIV copies per milliliter of blood, is the most important outcome. Is there…
A: standard therapy new therapy 7400 400 7900 1500 1900 250 450 900 900 9000 2150 7300…
Q: A clinical trial is conducted to compare an experimental medication to placebo to reduce the…
A: State the hypotheses. Let p1 denotes the population proportions of participants reporting a…
Q: The most likely explanation is
A:
Q: A random sample of 800 students is given an injection to prevent a certain type of flu. They are…
A: We have given that Sample size n= 800 Favorable cases x= 620 Sample proportion p^=x/n
Q: A clinical trial is conducted to compare an experimental medication to placebo to reduce the…
A: This is two proportions Z-test. Rejection criteria: Reject the null hypothesis if |Z|>Zc at 0.05…
Q: Mammography and clinical breast examination are the two major techniques used to screen for breast…
A: Given that among women with breast cancer, 2% of all screening tests are false negatives.
Q: In a study conducted by the U.S. Department of Health and Human Services, a sample of 546 boys aged…
A: Given:: In a study conducted by the U.S. Department of Health and Human Services, a sample of 546…
Q: An experiment to evaluate whether vitamins can help prevent the recurrence of blocked arteries in…
A: The objective of the question is to understand the importance of a placebo group and random…
Q: Imagine you are a statistical consultant and your client, a weightlifting supplement company, is…
A: Introduction: It is required to state the research question, identify the parameter, and provide the…
Q: An epidemiologist found five cases of “big toe cancer” in the Yukon Territory. Because there were…
A: Note: Since we are authorized to answer only up to 3 subparts, we are answering first three…
Q: Researchers studying the effect of antibiotic treatment for acute sinusitis compared to symptomatic…
A: The question is about Chi-Square test for Independence. There are 2 variables. Those are Group and…
Q: experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are…
A: We have given that n1=100 , x1=38 n2=100 , x2=21 Alpha=0.05
Q: Sleep apnea is a disorder in which there are pauses in breathing during sleep. People with this…
A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…
Q: Researchers investigate how the presence of cell phones influence the quality of human interaction.…
A: Given information: Researchers are interested to study the effect of the cell phones quality of…
Q: NCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24 Title of the article: After Menopause,…
A: Given information: The information is given related to overweight women those who affect breast…
Q: There is a current chemotherapy drug available that is extremely successful in treating an…
A: Given that Sample size n =214 Favorable cases x =31 Sample proportion p^=x/n =31/214 =0.1449
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- In the past 10 years, the prevalence of peanut allergies has doubled in Western countries. Is consumption or avoidance of peanuts in infants related to the development of peanut allergies in infants at risk? Subjects included infants between four and 11 months with severe eczema, egg allergy, or both but who did not display a preexisting sensitivity to peanuts based on a skin-prick test. The infants were randomly assigned to either a treatment that avoided consuming peanut protein or a treatment in which at least 6 grams of peanut protein were consumed per week. The response was the presence or absence of peanut allergy at 60 months of age. In the avoidance group containing 263 infants, 36 had developed a peanut allergy at 60 months of age, while in the consumption group containing 266 infants, five had developed a peanut allergy. George Du Toit et al., "Randomized trial of peanut consumption in infants at risk for peanut allergy," New England Journal of Medicine, 372 (2015), pp.…A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use α = 0.05. What should the researcher’s conclusion be for a 5% significance level? Reject H0because 2.64 ≥ 1.960. We have statistically significant evidence at α = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject H0 at the 5% level because 2.64 is greater than 1.96. We do have statistically…A pharmaceutical company has developed a new drug called Antisubcillin to treat substance use disorder. They have just completed an experiment assessing the safety of the drug. To test safety, 100 rats were given 20 mg of Antisubcillin and 100 rats were given a placebo. The study was conducted as a double-blind controlled study and so the researchers did not know which rats were receiving the drug and which were receiving the placebo. The number of negative side effects displayed by each rat over the course of 8 weeks was recorded. Which statistical test should be used to analyze these data? z test one-sample t test independent samples t test dependent samples t test
- NCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24 Title of the article: After Menopause, Weight Affects Breast Cancer Rates More than Mammography Use Women who are overweight or obese after menopause face an increased risk of breast cancer, but a large prospective cohort study indicates that the frequency of mammography use and screening accuracy are not the primary explanations for higher rates of breast cancer in these women. The same is true of large, invasive breast cancer tumors and advanced stage disease; risk increases with weight, but higher rates are not explained by the frequency or accuracy of screening mammography before breast cancer was diagnosed. The study appears in the December 3 Journal of the National Cancer Institute. Dr. Karla Kerlikowske of the San Francisco Veterans Affairs Medical Center and colleagues gathered data on 287,115 postmenopausal women who were registered in the Breast Cancer Surveillance Consortium database. Reflecting a trend in the…A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use α = 0.05. What should the researcher’s conclusion be for a 5% significance level? Reject H0because 2.64 ≥ 1.960. We have statistically significant evidence at α = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject H0 at the 5% level because 2.64 is greater than 1.96. We do have statistically…Here is the scenario for your Between Subjects Independent One Way ANOVA: Dr. Xena is interested in determine which type of therapy best helps persons with bipolar depression. She gathers a random and representative sample of men and women ages 18-95 years of age who have a diagnosis of Bipolar Depression who are taking Lithium for at least 6 months. She randomly assigns participants to conditions and measures well being scores after 4 months of therapy. Well being scores range from 0-100, with 100 being high well-being (feel good and experiencing no mood swings). Here is the data: Cognitive Therapy EMDR Therapy Psychoanalytical Therapy 15 72 28 78 91…
- A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions of participants reporting a reduction of symptoms between the experimental and placebo groups. Use α = 0.05. What should the researcher’s conclusion be for a 5% significance level? Reject H0because 2.64 ≥ 1.960. We have statistically significant evidence at α = 0.05 to show that there is a difference in the proportions of patients reporting a reduction in symptoms. We reject H0 at the 5% level because 2.64 is greater than 1.96. We do have statistically…A study investigated the joint effects of sleep quality and sleep duration on the development of coronary heart disease (CHD). A total of 60,586 individuals aged 40 and older with no current or prior history of CHD were enrolled into the study. A self-administered questionnaire was used to collect information on sleep quality and duration at the start of the study, and 43,910 participants reported getting ³6 hours of sleep per day. Participants were followed for approximately 12 years, for a total of 152,000 person-years among those getting <6 hours sleep/day and 527,000 person-years among those getting ³6 hours sleep/day. Out of 2,740 participants who developed CHD throughout follow-up, 721 participants reported getting <6 hours of sleep per day at baseline. Question 10: What is the incidence rate of coronary heart disease among all participants in the study?A study in a journal published by the American Academy of Pediatrics (as reported in the Miami Herald, Jan. 14, 1997) seems to suggest that preschoolers who drink more than 12 ounces of fruit juice a day tend to be heavier and shorter than preschoolers who do not. The study involved a random sample of 168 healthy youngsters of whom 59 drank on average more than 12 ounces of fruit juice per day. Each child was weighed and measured. The measurements were then converted to percentage of normal height and weight for a child of that age and gender. For example, a weight percentage of 1.1 indicates that the child is 10% heavier than average. A recorded 0.80 indicates the child is 20% below the average. An average weight is recorded as 1.0. Same with height. Column 1: Juice 1- indicates child DID drink > 12 oz 2- child DID NOT drink > 12 oz Column 2: Weight% weight converted to percent of…
- Trans-Generational Effects of Diet Can experiences of parents affect future children? New studies16 suggest that they can: Early life experiences of parents appear to cause permanent changes in sperm and eggs. In one study, some male rats were fed a high-fat diet with 43% of calories from fat (a typical American diet), while others were fed a normal healthy rat diet. Not surprisingly, the rats fed the high-fat diet were far more likely than the normal-diet rats to develop metabolic syndrome (characterized by such things as excess weight, excess fat, insulin resistance, and glucose intolerance.) What surprised the scientists was that the daughters of these rats were also far more likely to develop metabolic syndrome than the daughters of rats fed healthy diets. None of the daughters and none of the mothers ate a high-fat diet and the fathers did not have any contact with the daughters. The high-fat diet of the fathers appeared to cause negative effects for their daughters. What are the…A study was made of 413 children who were hospitalized as a result of motor vehicle crashes. Among 290 children who were not using seat belts, 60 were injured severely. Among 123 children using seat belts, 16 were injured severely (based on data from "Morbidity Among Pediatric Motor Vehicle Crash Victims: The Effectiveness of Seat Belts," by Osberg and Di Scala, American Journal of Public Health, Vol. 82, No. 3). For this problem we want to know, is there sufficient sample evidence to conclude, at the 0.05 significance level, that the proportion of severe injuries is higher for children not wearing seat belts? Let pi be the proportion of severe injuries among all children not wearing seatbelts and who were involved in crashes. Let p2 be the proportion of severe injuries among all children wearing seatbelts and who were involved in crashes. Which is the proper expression of Ho? Pi = P2 O Pi P2 Which is the proper expression of H1? O pi P2 Calculate p1 to 4 decimal places: Calculate p,…In the Utah study, among participants who reported contact with a family member with known SARS-COV-2 infection, 14.4 % were seropositive. In your area, you are noticing a similar trend. Based on your study with your team, you have determined that among the 100 people in your sample who reported contact with a family member with known SARS-CoV-2 infection, 20% of the individuals were seropositive. Answer the following questions about your study: (a) What is the n? (b) What is the p (use two places after the decimal)? (c) What is the q (use two places after the decimal)? (d) What is the expected value for 100 seropostive cases? (e) What is the variance for 100 seropositive cases?