In a large clinical trial, 395,780 children were randomly assigned to two groups. The treatment group consisted of 198,184 children given a vaccine for a certain disease, and 37 of those children developed the disease,The other 197,596 children were given a placebo, and 142 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n,, P1, 91, n2. P2, ĝ2. P, and q.n =

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Answered: In a large clinical trial, 395,780…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a large clinical trial, 393,290 children were randomly assigned to two groups. The treatment group consisted of 195,135 children given a vaccine for a certain disease, and 30 of those children developed the disease. The other 198,155 children were given a placebo, and 109 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values ofn1,p1,q1,n2,p2,q2,p2 and q. n1= p1=(Type an integer or a decimal rounded to eight decimal places as needed.) q1=(Type an integer or a decimal rounded to eight decimal places as needed.) n2= p2=(Type an integer or a decimal rounded to eight decimal places as needed.) q2=(Type an integer or a decimal rounded to eight decimal places as needed.) p=(Type an integer or a decimal rounded to eight decimal places as needed.) q=(Type an integer or a decimal rounded to eight decimal places as needed.)
A study used 1259 patients who had suffered a stroke. The study randomly assigned each subject to an aspirin treatment or a placebo treatment. During a 3-year follow-up period, in Sample 1, 634 people received placebo treatments and 25 people died from heart attack. In sample 2, 625 people received aspirin treatment and 18 died from heart attack. Let pl denote the population proportion of death from heart attack for those with no treatment and p2 denote the population proportion of death from heart attack for those with aspirin treatment. (c) Which of SEO and SE1 is used for calculating a confidence interval for comparing two population proportions? Which is used for calculating the test statistic in a hypothesis test? (d) Construct the 95% confidence interval for pi – p2. Interpret.
A random sample of n1 = 157 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 12 were found to be high school dropouts. Another random sample of n2 = 129 people ages 16 to 19 were taken from Sweetwater County, Wyoming, and 6 were found to be high school dropouts. Do these data indicate that the population proportion of high school dropouts on Oahu is different (either way) from that of Sweetwater County? Use a 1% level of significance. (a) What is the level of significance? What is the value of the sample test statistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
A study was conducted at the local skate park to determine how caffeine affected the performance of skateboarders during competitions. 100 skateboarders were selected from an upcoming competition roster. The researchers chose a random entry then proceeded to select every 4th entry until the desired sample size was reached.On the day of the competition, the sample was split (at random) into two groups. Each member of Group "A" was given a cup of decaf coffee while each member of Group "B" was given a cup of coffee containing 100mg of caffeine. (The skateboarders did not know which type of coffee they received.) As the competition progressed, the scores for each skateboarder were tracked.
In a large clinical trial, 392,553 children were randomly assigned to two groups. The treatment group consisted of 195,331 children given a vaccine for a certain disease, and 36 of those children developed the disease. The other 197,222 children were given a placebo, and 129 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n1, p1, q1, n2, p2, q2, p, and q.
In a large clinical trial, 394,108 children were randomly assigned to two groups. The treatment group consisted of 198,537 children given a vaccine for a certain disease, and 30 of those children developed the disease. The other 195,571 children were given a placebo, and 105 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Complete parts (a) through (d) below.
In a large clinical trial, 401,049 children were randomly assigned to two groups. The treatment group consisted of 200,607 children given a vaccine for a certain disease, and 33 of those children developed the disease. The other 200,442 children were given a placebo, and 121 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of: n1, p1, q1, n2, p2, q2, p, and q.
In a large clinical trial, 391,834 children were randomly assigned to two groups. The treatment group consisted of 197,193 children given a vaccine for a certain disease, and 39 of thos children developed the disease. The other 194,641 children were given a placebo, and 149 of those children developed the disease. Consider the vaccine treatment group to be the firs sample. Identify the values of n,, P1, 9,, n2, P2, q2, p, and q. (Type an integer or a decimal rounded to eight decimal places as needed.) q, = 0.99980222 (Type an integer or a decimal rounded to eight decimal places as needed.) n2 = 194641 P2 (Type an integer or a decimal rounded to eight decimal places as needed.) 92 = (Type an integer or a decimal rounded to eight decimal places as needed.) p3= (Type an integer or a decimal rounded to eight decimal places as needed.) (Type an integer or a decimal rounded to eight decimal places as needed.)
In a large clinical trial, 401,476children were randomly assigned to two groups. The treatment group consisted of 202,144 children given a vaccine for a certain disease, and 29 of those children developed the disease. The other 199,332 children were given a placebo, and 113 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n1, p1, q1, n2, p2, q2, p, and q. n^1=
9
In a large clinical trial, 396,565 children were randomly assigned to two groups. The treatment group consisted of 199,919 children given a vaccine for a certain disease, and 30 of those children developed the disease. The other 196,646 children were given a placebo, and 105 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n,, P1, 91, n2. P2, 92. p, and q. Enter your answer in the answer box and then click Check Answer. Check Anwer Clear All 7 parts remaining MacBook Air क 19 * ES F7 吕0 F4 esc FI F2 $ % & delele %23 5 7 4 T Y Q W E tab つ F G S レン * 00 つエく0
In a large clinical trial, 401,321 children were randomly assigned to two groups. The treatment group consisted of 201,186 children given a vaccine for a certain disease, and 30 of those children developed the disease. The other 200,135 children were given a placebo, and 100 of those children developed the disease. Consider the vaccine treatment group to be the first sample. Identify the values of n1, p1, q1, n2, p2, q2, p, and q. = Round each to 8 decimals

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