*thumb_up*100%

Can you tell me if my answer to this question on my homework assignment is correct and provide an explanation?

A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo and 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

Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance.

Reject H0 if Z < __-1.96______ or if Z > ___1.96_____

alpha= ____0.05____

P = __.271______

P1 = __.367______

P2 = __.175______ Z=P1-P2/square root of ((p(1-p) (1/n1+1/n2))

Z = ___3.43_____ Z= .367-.175/square root of (.271)(.729) (.016)=.192/.056.

Z= 3.43

Based on comparing the computed z to the rejection level z which of the following is (are) true?

A. We have statistically significant evidence at alpha=0.05 to show that H0 is false.

B. We have statistically significant evidence at alpha=0.05 to show that there a significant difference in the proportions of patients reporting pain relief.

C. We do not have statistically significant evidence at alpha=0.05 to show there a significant difference in the proportions of patients reporting pain relief.

D. a and b (my answer)

### Want to see the full answer?

Check out a sample Q&A here*arrow_forward*Check out a sample Q&A here

*star_border*

## Related Statistics Q&A

Find answers to questions asked by students like you.

Q: The following study looks at a random sample of whether a person has tattoos and the presence of…

A: Solution: The given table of data is

Q: Cesareans Some people fear that differences in insurancecoverage can affect healthcare decisions. A…

A: The hypotheses are given below: Null hypothesis: H0:p1=p2 Alternative hypothesis: H1:p1≠p2 Test…

Q: Could you help me with question 18,19 and 38 for 18 I got mean- 0.919 median-0.92 mode- no mode?

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: manipulated

A: Here it is asked to identify the type of variable.

Q: A math teacher researches the relationship between 7th and 8th grade involvement in speech and…

A: The total number of students in the 8th grade is, 19+21=40

Q: 200 students were classified by gender and hostility level (low, medium, and high), as measured by…

A: Given that ; A Contigency table is given here By using chi square degree of freedom formula solve…

Q: A group of 500 children who sufler from asthma were asked to participate in a study to determine the…

A: Solution

Q: Is there a relationship between treatment and smoking cessation? A study randomly selects a group of…

A: The chi square is used to measure whether there is any relationship between the categorical…

Q: A matched-pair case-control study was conducted in order to assess if there is a relationship…

A: Given: A matched-pair case-control study was conducted to assess the relation between serum vitamin…

*question_answer*

Q: Rats were given one of four different diets at random, and the response measure was liver weights as…

A: Please note that as per our guideline we can answer three sub-parts only. Please repost the…

*question_answer*

Q: Photos, Postcards, Paintings Male Tourist Female Tourist Always Often Occasionally Rarely or never…

A: a) From the given table of percentages, it is evident that in some categories of purchasing…

*question_answer*

Q: Question 25, problem in photos!

A: Obtain the proportion of the 8th graders has cell phones:Total number of 8th graders is, 291…

*question_answer*

Q: Are America's top chief executive officers (CEOS) really worth all that money? One way to answer…

A: Denote μ1, μ2 as the true average percentage increase for company and CEO, respectively. The null…

*question_answer*

Q: How many individuals are described in this table? How many females were among the respondents? The…

A: Here as per GUIDELINES I HAVE CALCULATED 3 SUBPARTS PLZ REPOST WITH NOTE I NEED THIS THIS ,.... here…

*question_answer*

Q: measure of a company's productivity is annual percentage yield based on total company assets. A…

A: Step 1: The sample of the first sample: By using EXCEL, 1.enter the data 2.Enter the formula…

*question_answer*

Q: Are America's top chief executive officers (CEOs) really worth all that money? One way to answer…

A: Given, Suppose that a random sample of companies yielded the following data: B: Percent for…

*question_answer*

Q: Solve the following problems about Risks and Odds. In numbers 1-5, use the data in the table below…

A: The given data set is: Treatment Headache (A) No-Headache Total Viagra (B) 117 617…

*question_answer*

Q: Returning to a previously described scenario: Suppose that a scientist is interested in determining…

A: From the provided information, Males Females Total Sample size 112 107 219…

*question_answer*

Q: Med. 6.54 To assess whether degreed nurses received a more comprehensive training than reg- istered…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

*question_answer*

Q: Which of the following is not a data collection method? a. Watching TV b. Observation c.…

A: Solution :-

*question_answer*

Q: Antithrombotic drugs are used after coronary stenting to prevent stent thrombosis. A study was…

A: Introduction: It is of interest to test whether the drug regimen and number of adverse events are…

*question_answer*

Q: A sample of 15, 10 years -old children was taken to study whether watching television reduces the…

A: a)

*question_answer*

Q: One morning a local affiliate of national public radio show had an episode about parks in Idaho.…

A: Hello, since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

*question_answer*

Q: Are America's top chief executive officers (CEOs) really worth all that money? One way to answer…

A: From the provided information, Percent for company (B) Percent for CEO (A) 19 11 20…

*question_answer*

Q: In a study of 135 women, roughly half took estrogen as well as calcium and vitamin D supplements and…

A: Given problem Given that In a study of 135 women, roughly half took estrogen as well as calcium…

*question_answer*

Q: A doctor studies the side effects of a drug on male and female. Following data was obtained for a…

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

*question_answer*

Q: A researcher hears a study report that 30 percent of Americans are obese, and he wants to test that…

A: Given, A researcher hears a study report that 30 percent of Americans are obese and he wants to test…

*question_answer*

Q: Dr. Guidry conducts a study examining the relationship between the number of friends one has and the…

A: A study reported in the Journal of Small Business Management concluded that self- employed…

*question_answer*

Q: In a study of the effect of handedness on athletic ability, participants were divided into three…

A: In regression theory, dependent variable is the response variable, which is predicted using the…

*question_answer*

Q: Returning to a previously described scenario: Suppose that a scientist is interested in determining…

A: Given, Prop. of males = 0.50 Prop. of females = 0.68

*question_answer*

Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: Hypothesis testing is used mainly to check whether an assumption made on the population is…

*question_answer*

Q: A randomly sampled group of patients at a major U.S. regional hospital became part of a nutrition…

A: According to our policy we can answer only first question for remaining please repost the question

*question_answer*

Q: Are America's top chief executive officers (CEOs) really worth all that money? One way to answer…

A: Given Information: B: Percent increase for company 12 14 16 24 15 10 10 9 A: Percent increase for…

*question_answer*

Q: Question Help A study conducted in Uganda and Kenya looked at heterosexual couples in which one of…

A: Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts at…

*question_answer*

Q: Do college students enjoy playing sports more than watching sports? A researcher randomly selected…

A: Given that, A researcher randomly selected ten college students and asked them to rate playing…

*question_answer*

Q: A matched-pair case-control study was conducted in order to assess if there is a relationship…

A: Given: A matched-pair case-control study was conducted to assess the relationship between serum…

*question_answer*

Q: In a random sample of adults surveyed recently in a country, researchers asked how important it is…

A: From the given data The number of males for whom it is "very important" to have a high paying job is…

*question_answer*

Q: 2. Agroup of tests was administered with the following results; Subject Science Math Economics |…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

*question_answer*

Q: A study was performed to compare two treatment regimens for smokers who wish to stop smoking. The…

A: Given :

*question_answer*

Q: From the stated results, is it suggested that screening positive for depression and being diagnosed…

A: Let's find both are dependent or independent.

*question_answer*

Q: Are America's top chief executive officers (CEOS) really worth all that money? One way to answer…

A: The mean difference between the two paired or dependent sample is calculated using the t test for…

*question_answer*

Q: How profitable are different sectors of the stock market? One way to answer such a question is to…

A: From the given information, n1=31x¯1=14.7σ1=3.4n2=36x¯2=9.8σ2=3.8 Confidence level is 0.95.…

*question_answer*

Q: Are America's top chief executive officers (CEOS) really worth all that money? One way to answer…

A: Consider the following table-

*question_answer*

Q: ypes made by the company. The data collection method that would be most likely used in this case…

A: A controlled experiment is a procedure that plans the experiment, conducts, analyzes, and interprets…

*question_answer*

Q: An environmentalist wishes to conduct a hypothesis test on the percentage of cars driven in the city…

A: Given, n=152 p=0.07

*question_answer*

Q: The medical researcher is comparing two treatments for lowering cholesterol: diet and meds. The…

A: The question is based on a hypo. testing of two sample prop. Given : Level of signif ( α ) = 0.05

*question_answer*

Q: Are America's top chief executive officers (CEOs) really worth all that money? One way to answer…

A: Given Information: B: Percent for Company 28 16 25 26 18 20 7 10 A: Percent for CEO 23 14 23 18…

*question_answer*

Q: webassign.net/web/Student/Assignment-Responses/submit?pos=10&dep=22704121&tags=autos A newspaper…

A: Confidence interval: The (1-α) % confidence interval for proportion p is given by,

*question_answer*

Q: John is skeptical of his friend's claim that Gerald's coffee house has much stronger coffee (in…

A: Given: The researcher's claim that Gerald's coffee house has much stronger coffee than Sabine's…