Quit smoking: In a survey of 444 HIV-positive smokers,194 reported that they had used a nicotine patch to try to quit smoking. Can you conclude that less than half of HIV-positive smokers have used a nicotine patch? Use the =α0.10 level of significance and the P-value method  a) State the appropriate null and alternate hypotheses. H0: H1: (b) Compute the value of the test statistic (c) Using =α0.01, can you conclude that less than half of HIV-positive smokers have used a nicotine patch?

Q: A random sample of n1 = 292 voters registered in the state of California showed that 141 voted in…

A: According to the provided data, (a) The level of significance, α is provided as 0.05. The null and…

Q: Suppose 450 subjects are treated with a drug that is used to treat pain and 140 of them developed…

A: The sample size, n is 450 and the number of patients who have developed nausea is 140. The sample…

Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…

A: From the provided information,

Q: The accompanying table lists body temperatures (in F) obtained from randomly selected subjects.…

A: State the hypotheses   Let Factor A denotes the Gender. Let Factor B denotes the smoking.   Test for…

Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical​ trials,…

A: Given information: x=151n=5797 The level of significance is α=0.10. The claim is that 3​% of users…

Q: Identify the test statistic.  Identify the p-value.  Is there sufficient evidence to support the…

A:

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: The p-value for a hypothesis test turns out to be 0.0715. At a 2% level of significance, what is the…

A: Here, the p-value is 0.0715. The level of significance is 0.02.

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 test of Hō: p = 0.4 versus Ha: p > 0.4 has the test statistic z = 2.52. Part A: What conclusion…

A: To test the hypothesis :The value of the test statistics is z=2.52

Q: Consider a drug testing company that provides a test for marijuana usage. Among 253 tested​…

A: Denote p as the true population proportion of wrong subjects for the test of marijuana usage.

Q: In one study of smokers who tried to quit smoking with nicotine patch​ therapy, 38 were smoking one…

A: Total sample size, n = 38 + 34 = 72 Smokers who tried to quit smoking with nicotine patch​ therapy,…

Q: Test Statistic Round to thousandths place.

A:

Q: Test the claim that the proportion of men who own cats is smaller than 10% at the .005 significance…

A: Test Statistic: The test statistic is, Thus, the test statistic is -1.765.

Q: What is the test statistic?

A:

Q: Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2, Use the…

A:

Q: A telephone company claims that more than 15% of its customers have at least two telephone lines.…

A:

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: For all hypothesis tests: State your null and alternative hypotheses Include the appropriate SPSS…

A: The following is the output of descriptive statistics for the given data The following are…

Q: Determine whether the alternative hypothesis is supported at a 0.05 significance level.

A: From the obtained results, The test statistic is 13.20. The critical value is 1.64.

Q: None

A: Statistical Analysis of Console Preference in GamersThis scenario involves testing a claim about a…

Q: The results of a recent poll on the preference of voters regarding the presidential candidates are…

A: From the provided information, 1) The hypotheses can be constructed as: H0: p1 = p2 H1: p1 ≠ p2

Q: A random sample of n1 = 295 voters registered in the state of California showed that 141 voted in…

A: Note: Hi there! Thank you for posting the question. TO avoid the plagiarism issues, we have used the…

Q: Twenty years ago, 51% of parents of children in high school felt it was a serious problem that high…

A: Givenn=850P0=0.51so n*P0(1-P0) = 850*0.51*(1-0.51) = 212.4

Q: Determine the P-value and decide whether at the 5% significance level, the data provide sufficient…

A:

Q: For married couples, is there a significant difference in data usage between the two partners on…

A:

Q: The following is a list of 11 measurements. - 89, 18, -21, -85, -3, -21, -94, -43, -45, -44, -25…

A: Number of observations=11 The given observations are -89,18,-21,-85,-3,-21,-94,-43,-45,-44,-25 The…

Q: A medical research team conducted a study to test the effect of a migraine drug. Of the 400 subjects…

A:

Q: State your decision to the significance test in terms of the null hypothesis.According to a recent…

A: The given test claims that the percentage of people in New York who would vote for the incumbent…

Q: The p-value for a hypothesis test turns out to be 0.06787. At a 6% level of significance, what is…

A: It is given that,  The p-value for a hypothesis test turns out to be 0.06787 i.e. P-value= 0.06787…

Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical​ trials,…

A: Given that  p = 3% , X = 152 , n = 5794  Level of significance = 0.05

Q: Determine the decision criterion for rejecting the null hypothesis in the given hypothesis test;…

A: n1 = 26 n2 = 49   The degree of freedom  df = n1 + n2 -2 df = 26 + 49 -2 = 73 Critical Value t =…

Q: What is the P value?

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

Q: In a simple random sample of 250 patients needing surgery, 80 said they obtained a second opinion.…

A:

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: Suppose 235 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: given dat,n=235x=54p^=xn=54235=0.2298

Q: In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A…

A: given  P0 =0.37 n=170

Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,926 responses, 65%…

A: Denote p as the true proportion of the respondents who said that they believed in the existence of…

Q: Weight loss: In a study to determine whether counseling could help people lose weight, a sample of…

A: Given: population mean(μ)=13Sample size(n)=14

Q: adults whether they believed that people should pay sales tax on items purchased over the internet.…

A: Let n denote the number of U.S. adults whether they believed that people should pay sales tax on…

Q: The mean height of women in a country (ages 20 of 55 women in this age group is selected. What is…

A: Given : Mean (µ)=63.9 Standard deviation (σ)=25.2 Sample size (n)=55

Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical​ trials,…

A: Solution-: Given: n=5797,x=151,P0=0.03,α=0.10 We want to  Part-1: Identify the null and alternative…

Q: Weight loss: In a study to determine whether counseling could help people lose weight, a sample of…

A: a) The claim is that the mean weight loss is greater than 13 pounds.

Q: A recent debate about where in the United States skiers believe the skiing is best prompted the…

A: Given: α=0.1

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.