In one study of smokers who tried to quit smoking with nicotine patch​ therapy, 40 were smoking one year after treatment and 33 were not smoking one year after the treatment. Use a 0.01 significance level to test the claim that among smokers who try to quit with nicotine patch​ therapy, the majority are smoking one year after the treatment. Do these results suggest that the nicotine patch therapy is not​ effective? Identify the test statistic for this hypothesis test and the conclusion for this hypothesis test

Q: In one study of smokers who tried to quit smoking with nicotine patch​ therapy, 39 were smoking one…

A: Given: x=39 n=39+30=69

Q: A researcher wishes to determine if vitamin E supplements could increase cognitive ability among…

A: Here, M1=27, sd1=6.9 and M2=24, sd2=6.2 n1=n2=90=n Pooled sd, sp=sqrt((6.92*89+6.22*89)/(90+90-2))…

Q: In a clinical study of an allergy drug 98 of the 202 subjects reported experiencing significant…

A:

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: Adults randomly selected for a poll were asked if they "favor or oppose using federal tax dollars to…

A: GIVEN DATA, 451- in favor450- opposed102-unsure 1003- total peopleα=0.05 claim:p=0.50x= no. of  in…

Q: Adults randomly selected for a poll were asked if they "favor or oppose using federal tax dollars to…

A: Given that:Sample size is:Number of favourable cases: Level of significance is: Population…

Q: Does heavy cell phone use affect brain activity? There is some concern about possible negative…

A: The hypothesis is an assumption that is being tested.

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: In the past, 32% of a country club's members brought guests to play golf sometime during the year.…

A: Formula : Test statistic

Q: A recent survey asked 1200 randomly selected U.S. adults if they believe that the U.S. federal…

A: Let the proportion of women (p1) and men (p2) who believe that the U.S. federal government is not…

Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…

A: Observational study: In observational study, the individuals of the study are observed by the…

Q: A health organization asserts that the prevalence of smoking among male adults 18 years or older in…

A: The test hypotheses are: Null hypothesis: H0: p1 = p2 Alternative hypothesis: Ha: p1 > p2. Test…

Q: Adults randomly selected for a poll were asked if they "favor or oppose using federal tax dollars to…

A:

Q: According to an exit poll for an​ election,54.8 ​% of the sample size of 831 reported voting for a…

A: We have sample proportion p=54.8%=0.548   and sample size n=831 To test that the population…

Q: Ride services are on the rise, such as Uber and Lyft. You wondered if the recent news reports of…

A: Given  19 males use ride services and 11 do not. 12 females use ride services and 18 do not.

Q: In a random sample of 550 women, 66% favored stricter gun control laws. In a random sample of 270…

A:

Q: According to a publication, 13.9% of 18 to 25-year-olds were users of marijuana in 2000. A recent…

A: Given information

Q: Small-business telephone users were surveyed 6 months after access to carriers other than AT&T…

A: The question is about hypo. testing Given : Random sample of users ( n1 ) = 368 No. of users who…

Q: A clinical trial tested the effectiveness of bupropion hydrochloride in helping people who want to…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: freshmen business majors? 366 of the 673 freshmen psychology majors from a recent study changed…

A: From the given information we conduct z test for two proprtion.

Q: In the past, 28% of a country club's members brought guests to play golf sometime during the year.…

A: Given: N=28 X=87

Q: A poll was conducted to investigate opinions about global warming. The respondents who answered yes…

A: The table for the responses of activity for global warming with male and female is,   Human…

Q: The article "Display of Health Risk Behaviors on MySpace by Adolescents"+ described a study in which…

A: (a) The study described is an observational study.Explanation: In an observational study,…

Q: In a study of cell phone use and brain hemispheric dominance, an internet survey was e-mailed to…

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

Q: Determine the null and alternative hypotheses. Ho: H₂: Determine the test statistic. (Round to two…

A: The given table is   Drove when Drinking Alcohol?   Yes No Texted While Driving 735 3036 No…

Q: A researcher is interested in the impact of joining a weight loss program in the past 12 months on…

A: Given information: The investigator is specially interested to determine the impact of joining…

Q: According to a publication, 12.6% of 18 to 25-year-olds were users of marijuana in 2000. A recent…

A: From the provided information, 12.6% of 18 to 25 years old were users of marijuana in 2000 that is p…

Q: Suppose 243 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: Given, The number of subjects treated with a drug that is used to treat pain is n=243 The number of…

Q: What is the P value?

A: We have given that  p0=39/(32+39)=0.5493 α=0.05

Q: A study was undertaken with 24 randomly selected male subjects who were to undergo such surgery. The…

A: It is required to identify the correct alternative hypothesis, based on the given null hypothesis…

Q: What decision should the researcher make based on the results of the hypothesis test

A: Test is that whether or not the proportion of high school athletes who go on to play sports in…

Q: 2. In a study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking one…

A: We have given that  p0=39/(39+32)=0.5492

Q: Whirling disease is a deadly disease that affects trout in Montana riversIn a follow-up to a 2006…

A: The relative risk of whirling disease for rainbow trout compared to brown trout can be calculated as…

Q: Online dating sites and mobile dating apps have become more popular over the years for American…

A:

Q: When the 2000 GSS asked whether human beings developed from earlier species of animals, 53.8% of…

A: It is given that 53.8% of 1095 respondents answered that this was probably or definitely not true.

Q: Adults randomly selected for a poll were asked if they​ "favor or oppose using federal tax dollars…

A:

Q: According to a​ publication, 13.9​% of 18 to 25-year-olds were users of marijuana in 2000. A recent…

A: State the hypotheses. That is, there is no sufficient evidence to conclude that the percentage of…

Q: At the 0.05 level of significance, does the data provide evidence to suggest that consumers in the…

A: Given,sample size (n)=25sample mean(x)=1922.76standard deviation(s)=350.8991α=0.05

Q: A researcher is interested in the impact of joining a weight loss program in the past 12 months on…

A: Given that : A researcher is interested in the impact of joining a weight loss program in the past…

Q: study was performed to determine the percentage of people who wear life vests while out on the…

A: From the given information we conduct test for two Proportion.

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…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.