A study was conducted on the efficacy and safety of varenicline for smoking cessation in people living with HIV. The study was a randomized, double-blind, placebo-controlled trial. Of the 120 subjects treated with varenicline, 16abstained from smoking for the entire 48-week study period. Of the 121 subjects assigned to the placebo group, 8 abstained from smoking for the entire study period. Complete parts (a) and (b).Consider the first sample to be the varenicline group and the second sample to be the placebo group. What are the null and alternative hypotheses for the hypothesis test?O A. Ho P1 = P2Ha P1< P2O B. Ho P1 P2H P1 = P2O C. Ho P1 = P2Ha P1 P2O D. Ho P1> P2Ha: P1= P2O E. Ho P1 P2Identify the test statistic.(Round to two decimal places as needed.)Identify the p-valuep-value =(Round to three decimal places as needed.)theV the null hypothesis There isevidence to support the claim that the percentage from the varenicline group isSince the p-value isV the significance level of a = 0.01,percentage from the placebo group.Click to select your answer(s). A study was conducted on the efficacy and safety of varenicline for smoking cessation in people living with HIV. The study was a randomized, double-blind, placebo-controlled trial. Of the 120 subjects treated with varenicline, 16abstained from smoking for the entire 48-week study period. Of the 121 subjects assigned to the placebo group, 8 abstained from smoking for the entire study period. Complete parts (a) and (b).a. Find the sample percentage of subjects in each group who abstained from smoking for the entire study period.The sample percentage of subjects treated with varenicline who abstained from smoking for the entire 48-week study period is %. The sample percentage of subjects in the placebo group who abstained from smoking for theentire 48-week study period is %.(Round to two decimal places as needed.)b. Determine whether varenicline is effective in reducing smoking among HIV patients. Note that this means we should test if the proportion of the varenicline group who abstained from smoking for the entire study period issignificantly greater than that of the placebo group. Use a significance level of 0.01.Consider the first sample to be the varenicline group and the second sample to be the placebo group. What are the null and alternative hypotheses for the hypothesis test?O C. Ho P1 P2Ha P1 P2O B. Ho P1 P2O A. Ho P1 =P2Ha P, - P2Ha P1 P2O E. Ho P1 P2O D. Ho P1 > P2Ha P1 = P2Ha P, = P2Identify the test statistic.(Round to two decimal places as needed.)Click to select your answer(s).

Name: A study was conducted on the efficacy and safety of varenicline for s
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: A study was conducted on the efficacy and safety of varenicline for smoking cessation in people living with HIV. The study was a randomized, double-blind, placebo-controlled trial. Of the 120 subjects treated with varenicline, 16abstained from smoki

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

Math

Statistics

A study was conducted on the efficacy and safety of varenicline for smoking cessation in people living with HIV. The study was a randomized, double-blind, placebo-controlled trial. Of the 120 subjects treated with va abstained from smoking for the entire 48-week study period. Of the 121 subjects assigned to the placebo group, 8 abstained from smoking for the entire study period. Complete parts (a) and (b). Consider the first sample to be the varenicline group and the second sample to be the placebo group. What are the null and alternative hypotheses for the hypothesis test? O B. Ho P, p2 O C. Ho P1 =P2 O A. Ho P1= P2 Ha P1 P2 Ha P= P2 O E. Ho P1 P2 Identify the test statistic. (Round to two decimal places as needed) Identify the p-value. p-value = (Round to three decimal places as needed.)

A study was conducted on the efficacy and safety of varenicline for smoking cessation in people living with HIV. The study was a randomized, double-blind, placebo-controlled trial. Of the 120 subjects treated with va abstained from smoking for the entire 48-week study period. Of the 121 subjects assigned to the placebo group, 8 abstained from smoking for the entire study period. Complete parts (a) and (b). Consider the first sample to be the varenicline group and the second sample to be the placebo group. What are the null and alternative hypotheses for the hypothesis test? O B. Ho P, p2 O C. Ho P1 =P2 O A. Ho P1= P2 Ha P1 P2 Ha P= P2 O E. Ho P1 P2 Identify the test statistic. (Round to two decimal places as needed) Identify the p-value. p-value = (Round to three decimal places as needed.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Similar questions

Elizon Pharmaceuticals, Inc., announced the results of its first human trial of NPI 32101, a topical form of its skin ointment. A total of 225 patients diagnosed with skin irritations were randomly divided into three groups as part of a double-blind, placebo-controlled study to test the effectiveness of the new topical cream. The first group received a 0.5% cream, the second group received a 1.0% cream, and the third group received a placebo. Groups were treated twice daily for a 6-week period. (a)What type of experimental design is this? (b)What is the control group for this study? (c)What is the factor that is set to predetermined levels? What is the treatment? (d)What does it mean for this study to be double-blind? (e)Identify the experimental units. (f)Draw a diagram to illustrate the design.
A researcher conducted a medical study to investigate whether taking a low-dose aspirin reduces the chance of developing colon cancer. As part of the study, 1,000 adult volunteers were randomly assigned to one of two groups. Half of the volunteers were assigned to the experimental group that took a low-dose aspirin each day, and the other half were assigned to the control group that took a placebo each day. At the end of six years, 15 of the people who took the low-dose aspirin had developed colon cancer and 26 of the people who took the placebo had developed colon cancer. At the significance level α = 0.05, do the data provide convincing statistical evidence that taking a low-dose aspirin each day would reduce the chance of developing colon cancer among all people similar to the volunteers?
Researchers investigated the possible beneficial effect on heart health of crinking black tea and whether adding mikk to the tea reduces any possible benefit Tiventy-four volunteers Were randomly assigned to one of three groups Every day for month; participants in group drank twvo cups ofhot black tea without mikk; participants in group drank two cups of hot black tea with milk; and participants in group drank twvo cups ofhot water but no tea At the end of the month the fesearchers measured the change in each of the participants heart health. Is it reasonable to zeneralize the study beyond the 24 participants? Explain why or why not.
A company manufactures cell phone chargers. In August, a random sample of 200 chargers were inspected, and 3 were found to be defective. The company manufactured 14,600 cell phone chargers in August. Based on the results from the sample, about how many cell phone chargers are expected to be defective out of all the chargers produced in August?
A study was performed on 200 elementary school students to investigate whether regular Vitamin A supplementation was effective in preventing colds during the month of March. 100 were randomized to receive daily Vitamin A supplements during the month of March, and 100 students were randomized to a placebo group (and did not receive Vitamin A) during the same month. The number of students getting at least one cold in March was computed in the two groups, and the results are given in the following 2 X 2 table. Using a 5% level of significance determine whether there is an association between Vitamin A supplementation and prevention of Common Cold ColdNo Cold Vitamin A1585100 Placebo2575100 40160200
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents who subscribe to Sporting News. A random sample of 90 urban residents showed that 12 subscribed, and a random sample of 97 suburban residents showed that 17 subscribed. Does this indicate that a higher proportion of suburban residents subscribe to Sporting News? Use a 1% level of significance
A consumer advocacy group wanted to study whether different airline carriers differed in terms of their delayed flights. In particular, the researchers were interested in the relationship between p1, the proportion of Alpha Airlines flights that were delayed at least 15 minutes, and p2, the proportion of Beta Airlines flights that were delayed at least 15 minutes. A random sample of 1,000 Alpha flights and a separate random sample of 1,000 Beta flights found that 67 of the Alpha fights and 160 of the Beta flights were delayed at least 15 minutes. The conditions for inference were checked and verified. Does this set of samples provide strong evidence that Alpha Airlines has a smaller proportion of flights that are delayed at least 15 minutes than Beta Airlines, at the α = 0.05 significance level? Find the z-table here. A. The test statistic is z = –6.56 and the P-value ≈ 0. Since the P-value ≈ 0 < 0.05, there is not sufficient evidence that Alpha Airlines has fewer delayed…
A random sample of 50 suspension helmets used by motorcycle riders and automobile race-car drivers was subjected to an impact test, and on 18 of these helmets some damage was observed.
In randomized, double-blind clinical trials of a new vaccine, children were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 116 of 651 subjects in the experimental group (group 1) experienced fever as a side effect. After the second dose, 73 of 532 of the subjects in the control group (group 2) experienced fever as a side effect. Does the evidence suggest that a higher proportion of subjects in group 1 experienced fever as a side effect than subjects in group 2 at the α=0.10 level of significance? #1 Find the test statistic for this hypothesis test.
A researcher randomly selected a sample of n = 500 individuals from a population with µ = 120 and administered an experimental treatment to the sample. What the researcher should expect if the treatment has no significant effect?
Do well-rounded people get fewer colds? A study on the Chronicle of Higher Education was conducted by scientist at Carnegie Mellon University, the University of Pittsburgh and the University of Virginia. They found that people who have only a few social outlets get more colds than those who are involved in a variety of social activities. Suppose that of the 276 healthy men and women tested, n1=96 had only a few social outlets and n2=105 were busy with six or more activities. When these people were exposed to a cold virus, the following results were observed: Construct a 99% confidence interval for the difference in the two population proportions.
In randomized, double-blind clinical trials of a new vaccine, infants were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 126 of 387 subjects in the experimental group (group 1) experienced drowsiness as a side effect. After the second dose, 158 of 574 of the subjects in the control group (group 2) experienced drowsiness as a side effect. Does the evidence suggest that a higher proportion of subjects in group 1 experienced drowsiness as a side effect than subjects in group 2 at the α=0.01 level of significance? Verify the model requirements. Select all that apply. A. The sample size is less than 5% of the population size for each sample. B. n1p11−p1≥10 and n2p21−p2≥10 C. The samples are dependent. D. The sample size is more than 5% of the population size for each sample. E. The samples are independent. F. The data come…