Math

StatisticsQ&A LibraryCan you tell me if my answers are correct for the following question on my homework assignment:1. A clinical trial is conducted comparing a new pain medication for arthritis. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes. The data are shown below.Pain Relief No Pain ReliefNew Medication 44 76Placebo 21 99Estimate the risk difference in pain relief between treatmentsRD = .192Estimate the relative risk in pain relief between treatmentsRR = 2.10Estimate the odds ratio in pain relief between treatmentsOR = 2.74The upper and lower limits of the are shown belowLower Limit of CI: ____0.41____Upper Limit of CI: ___1.61_____Based on the Confidence Interval values which of the following are true?A. One can be 95% confident that the true value will be greater than the upper limit.B. One can be 95% confident that the true value will be greater than the lower limit.C. One can be 95% confident that the true value will between the upper and lower limit.D. Both a and BStart your trial now! First week only $4.99!*arrow_forward*

Question

Can you tell me if my answers are correct for the following question on my homework assignment:

1. A clinical trial is conducted comparing a new pain medication for arthritis. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes. The data are shown below.

Pain Relief No Pain Relief

New Medication 44 76

Placebo 21 99

Estimate the risk difference in pain relief between treatments

RD = .192

Estimate the relative risk in pain relief between treatments

RR = 2.10

Estimate the odds ratio in pain relief between treatments

OR = 2.74

The upper and lower limits of the are shown below

Lower Limit of CI: ____0.41____

Upper Limit of CI: ___1.61_____

Based on the Confidence Interval values which of the following are true?

A. One can be 95% confident that the true value will be greater than the upper limit.

B. One can be 95% confident that the true value will be greater than the lower limit.

C. One can be 95% confident that the true value will between the upper and lower limit.

D. Both a and B

1 Rating

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: Why should researchers be very cautious about comparison or correlatios that involve different vaiab...

A: In general correlation does not imply causation. If there is strong correlation between two variable...

Q: Let x be the age of a licensed driver in years. Let y be the percentage of all fatal accidents (for ...

A: Hey, since there are multiple subpart questions posted, we will answer first three subparts. If you ...

Q: D, E, F

A: In this question, we have the data for two groups and we have to find the inference about the popul...

Q: Fifty-three percent of all persons in the U.S. population have at least some college education. Cho...

A: According to the given question, Fifty-three percent of all persons in the U.S. population have at l...

Q: Use the rank correlation coefficient to test for a correlation between the two variables. Use a sign...

A: In this question we have the ranks of judges, we need to conduct the hypothesis test to identify whe...

Q: A contingency table for injuries in the United states, by circumstances and gender, is a follows. Fr...

A: Calculation for part (a):The contingency table is given for injuries.For any event A, the probabilit...

Q: Fuming because you are stuck in traffic? Roadway congestion is a costly item, both in time wasted an...

A: Hey, since there are multiple subpart questions posted, we will answer first three subparts. If you ...

Q: This study investigated the cognitive effects of stimulant medication in children with Attention-Def...

A: Solution:The appropriate statistical analysis to determine if there is an effect of drug dose on CPT...

Q: Number 40 A B C

A: (a) Computation of probability that a randomly selected car will get through Wendy’s drive through i...

Q: Part a, b, c

A: Null and alternative hypothesis:Null Hypothesis:A null hypothesis is a statement regarding the popul...

Q: Suppose x has a normal distribution with mean μ = 28 and standard deviation σ = 7.Describe the distr...

A: Note:Hi there! Thank you for posting the question. Your question asks about the “distribution of x v...

Q: You are asked to design a study to investigate the effectiveness of the Atkins diet (IV = diet, DV =...

A: Independent t test:Independent t test determines whether there is significant difference between the...

Q: Rolling Two Dice If two dice are rolled one time, find the probability of getting these results A. ...

A: Hello there! There are more than 3 sub-parts in the question shared. According to our policies canno...

Q: A researcher claims that the incidence of a certain type of cancer is less than 5%. To test this cla...

A: Test statistic calculation:In this context, a researcher claimed that the proportion of incidence of...

Q: If a given line has a negative slope, then what is the sign of the slope of the line that is perpend...

A: Relationship between slopes of two perpendicular straight lines:The slopes of two lines, which are p...

Q: A medical researcher wants to construct a 95% confidence interval for the proportion of knee replace...

A: Sample size:The minimum sample size for a desired confidence level, α with a given margin of error, ...

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason fo...

A: 1) Computation of test statistic:Here, the appropriate test to check whether the population proporti...

Q: Total plasma volume is important in determining the required plasma component in blood replacement t...

A: Hello there! there are more than 3 sub parts in question. It is against our policies to solve more ...

Q: Members of the school committee for a large city claim that the population mean class size of a midd...

A: According to the question,H0: μ=20 versus Ha: μ<20We have n = 35Level of significance = 0.05t = -...

Q: Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone...

A: In this question we have the data, using which we have to plot the scatter plot and best line of fit...

Q: A simple random sample of n=23 professors at a local community college have a mean course evaluation...

A: Solution:Null and alternative hypotheses:Null hypothesis: µ = 4Alternative hypothesis: µ ≠ 4Test sta...

Q: (c) Compute the sample correlation coefficient r for each of the following data sets and show that r...

A: Sample correlation coefficient:The Karl Pearson’s product-moment correlation coefficient or simply, ...

Q: A group of data items and their mean are given. 12, 20, 28, 48, 72, 108; Mean=48 A. Type the deviat...

A: A.Computing the deviation from mean for each of the data:Here the data items are 12, 20, 28, 48, 72,...

Q: Suppose you are assigned the number 1, and the other students in your statistics class call out cons...

A: Solution:(a) A random sample of four students from statistics class can be selected by using a compu...

Q: A politician recently made the claim that 47% of taxpayers from a certain region do not pay any inco...

A: The aim is to identify the null and alternative hypotheses for testing the claim.

Q: Find the probability of an event E if the odds for E is equal to the odds against

A: Odds of an event:The odds an event is given by the ratio of the probability of the event to its prob...

Q: The government of a large city needs to determine whether the city's residents will support the bui...

A: Solution:Reasons for incorrect options:Opinions of other city residents who do not have children in ...

Q: How would I construct a stem and leaf plot using these numbers 57 54 52 55 51 56 61 68 56 55 54 61 5...

A: Introduction:The numbers here are all two-digit numbers. So, you can consider the digit in the ten’s...

Q: Let’s say you have a study looking at the DV “Time to help”. Your IV is whether potential helpers di...

A: Cohen's d is a type of effect size that represents the degree to which a null hypothesis is false. ...

Q: 1). How would you measure both “general knowledge” and “judgment” (what are your operational definit...

A: 1)The “general knowledge” and “judgement” of the participants can be measured by a series of tests g...

Q: Suppose 230 subjects are treated with a drug that is used to treat pain and 54 of them developed nau...

A: Given hypothesis testNull Hypothesis : p = 0.20Alternative Hypothesis : p > 0.20The sample size n...

Q: How do you determine the mean annual return?

A: The mean of any given data is nothing but the average of the data.Let X1, X2 , X ,....., Xn are n da...

Q: 1. A committee of eight people must choose a president, a vice president and a secretary. In how man...

A: Number of ways three positions can be chosen:When there are n items, the number of ways x items can ...

Q: Number 15 A B C D

A: Note:Thank you for the question. However, your question has more than 3 parts. We are solving first ...

Q: The dose-response effect is best described as A. when similar studies produce similar results B...

A: Introduction:The dose-response effect is a measure of the magnitude of the response in the subjects ...

Q: Consider a sample of 54 football games, where 28 of them were won by the home team. Use a 0.05 signi...

A: Test statistic calculation:The probability that the number of home team wins will be greater than on...

Q: Avarege GPA questions. Data include.

A: Note: Since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not me...

Q: Monica, still, takes one hour to wash a car and Bill takes two hours to wash a car. If they work to...

A: Let Monica and Bill can complete the work in x hours if they work together.Washing a car can be deno...

Q: Arianna Estefan manages Salmon Falls Park, which has two flagship roller coasters, the Flyer and the...

A: Given Null hypothesis : H0 : µ1 = µ2Alternate hypothesis : Ha : µ1 < µ2, where µ1 is mean numbe...

Q: The market firm salary.com reported that the mean annual earnings of all family practitioners in the...

A: A. Hypotheses:Denote µ as the population mean salary for family practitioners in LA. The claim is th...

Q: Natasha is a physician looking to determine whether a supplement is effective in helping men lose we...

A: Test statistic results:For testing whether a supplement is effective in helping men lose weight or n...

Q: A statistical program is recommended. Electromagnetic technologies offer effective nondestructive se...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: Jobs and productivity! How do retail stores rate? One way to answer this question is to examine annu...

A: (a)Using the provided data, the sample mean can be calculated using Excel function “AVERAGE()”.Enter...

Q: I need help with part (c) only, I need t statistic and p value. Mist (airborne droplets or aerosols)...

A: Part (c):The regression analysis is conducted here by using EXCEL. The software procedure is given b...

Q: Find the minimum sample size n needed to estimate muμ for the given values of c, sigmaσ, and E. c=...

A: The formula for the minimum sample size is as follows:

Q: construct a probability distribution and draw a graph for a family of 3 children. Let X represent t...

A: According to the given question, construct a probability distribution and draw a graph for a family ...

Q: Construct a probability distribution for the data and draw a graph for the distribution. Find the m...

A: The probability distribution is given by:

Q: A genetic experiment involving peas yielded one sample of offspring consisting of 430 green peas and...

A: State the appropriate hypothesis:Let p be the population proportion of yellow offspring peas.The giv...

Q: Statistics Question

A: Solution:Computation of equation of the regression line:Step-by-step EXCEL procedure to find the equ...

Q: What percentage of hospitals provide at least some charity care? Based on a random sample of hospita...

A: Finding the mean and standard deviation of the variable X.Mean:The general formula to obtain the mea...