Please help needed on this asap. Thanks so much! It has been observed that some persons who suffer colitis, again suffer colitis within one year of the first episode. This is due, in part, to damage from the first episode. The performance of a new drug designed to prevent a second episode is to be tested for its effectiveness in preventing a second episode. In order to do this two groups of people suffering a first episode are selected. There are 170 people in the first group and this group will be administered the new drug. There are 132 people in the second group and this group wil be administered a placebo. After one year, 14% of the first group has a second episode and 18% of the second group has a second episode. What is a 90% confidence interval for the difference in true proportion of the two groups

Q: Some people seem to believe that you can fix anything with duct tape. Even so, many were skeptical…

A: Hypothesis test needs to be conducted for the claim that

Q: An advertising agency is testing the effectiveness of a new commercial. They are trying out the…

A: factor : time length and format time length level = 3(15,30,60 seconds) Format level =2(animated vs.…

Q: A certain allergen affects approximately 3 people per 10,000 in the United States. Assuming the U.S.…

A: Since the number of people affected per 10, 000 =3  so , if there is only one person then chance of…

Q: You are asked to evaluate another new test for earlier detection of head and neck cancer. In total,…

A: The question is sensitivity and specificity Given : Total no. of people who tested +ve = 500 Total…

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: Given : Past research indicates that about 30% of people who get the flu experience nausea , p0 =…

Q: A certain virus affects 0.5% of the population. A test used to detect the virus in a person is…

A:

Q: health officer is trying to study the malaria situation of Zambia. From the records of  seasonal…

A: Given the proportion of people having malaria in Zambia was 3.8% in 2015. The size of the sample…

Q: As a student, you probably have noticed a curious phenomenon. In every class, there are some…

A: Solution: The data on the amount of time each student spent working and the grade each student…

Q: As a student, you probably have noticed a curious phenomenon. In every class, there are some…

A: Calculate the Pearson correlation between time and grade. Time (in minutes) = x  Exam Grade = y…

Q: has been observed that some persons who suffer colitis, again suffer colitis within one year of the…

A: Given P1=0.12 P2=0.13 n1=118 n2=127

Q: In the past 100 years, there have been more than 250 successful breakouts from Didsbury Prison. Mike…

A: Given, In the past 100 years, there have been more than 250 successful breakouts from Didsbury…

Q: Cholera, a serious intestinal disease, broke out in London in the mid-19th century. Research by a…

A: Given that,   Infected Not Infected Vaccinated 3 276 Not Vaccinated 66 473

Q: Some people seem to believe that you can fix anything with duct tape. Even so, many were skeptical…

A: Given that,sample one, x1 =60, n1 =103, p1= x1/n1=0.5825sample two, x2 =88, n2 =101, p2=…

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: (a) Denote μ as the true percentage of people experiencing nausea, among those who have flu and are…

Q: ) Find the probability that a person has the virus given that they have tested positive. Round your…

A: Given,  0.4% population is infected 90% of times the person has virus tested positive(true positive)…

Q: Your math teacher Ms. Washington notices that students with calculators do better on her math tests…

A: Solution Causation and correlation are different and causation  do not provide correlation.

Q: Do these data suggest that freezing is less successful than duct tape in removing warts? Test the…

A: Let pnitrogen denotes the population proportion of liquid nitrogen freezing who wart successfully…

Q: A pandemic has begun and has been spreading in almost all countries. A tipster sent a handwritten…

A: To calculate inverse of function f(x) , we replace f(x) by y and solve for x in terms of y.

Q: A Dr is doing a test on diseases. He has a population of 1,000,000 with a disease affecting .01% of…

A: Solution

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: Given Information: Claim: The percentage of those who experience nausea while having the flu and…

Q: ou are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: give data  p = proportion of people taking tamiflu and  experience nausea claim : p >0.30 α =…

Q: Suppose that your friend sees the results from question 4 and concludes that heavier drinking causes…

A: Correlation between two variables measure the strength and direction between two variables. It…

Q: . Create    a    scatter    plot    of    the    data b. Calculate    r    and    r2 c. Report…

A: From the above data  We are given that  X independent variable is Time  Y dependent variable is…

Q: We want to know if students with bronchitis at 5 years have more cough symptoms when they grow up.…

A: Answer:-  Number of students with cough symptoms at a age 12 with Bronchitis at age 5 =32 out of 290…

Q: without treatment, 20 out of 100 clients with depression will improve. After developing a new…

A: 20 out of 100 clients with depression improved w/o treatment and after developing a new treatment…

Q: It has been observed that some persons who suffer colitis, again suffer colitis within one year of…

A: Solution-: Let, p1 and p2 be proportion of first and second group respectively. Given:…

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot just give Tamiflu to…

A: Given,nause while having the flu and taking Tamiflu willbe greater than 30%

Q: a) If we want to resolve this hypothesis against the alternative that there is some form of…

A: a:Null Hypothesis (H0​):The null hypothesis suggests no difference between the population fractions…

Q: It has been observed that some persons who suffer acute heartburn, again suffer acute heartburn…

A: The question is about hypo. testing Given : Randomly selected no. of people in the first group ( n1…

Q: has been observed that some persons who suffer colitis, again suffer colitis within one year of the…

A: Given n1=170 n2=132 P1=14%=0.14 p2=18%=0.18

Q: Arthritis is a very commonly occurring affliction. It is a major cause of lost work time and often…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 4 sub-parts.  In case…

Q: mble. Number with Wart Successfully Removed Treatment Liquid nitrogen freezing 103 60 Duct Tape 100…

A: Given,  Forliquid nitrogen freezing: sample size (n1) = 103 x1 = 60 sample proportion (p1^) = x1/n1…

Q: Imagine you work for a large company that sells a variety of cleaning supplies deigned to prevent…

A: It is given that each group has 181 observations.

Q: In August and September  2005 , Hurricanes Katrina and Rita caused extraordinary flooding in New…

A: Given : Claim : There is a difference between the proportion of residents with wheezing symptoms who…