Question

In​ randomized, double-blind clinical trials of a new​ vaccine, monkeys were randomly divided into two groups....

In​ randomized, double-blind clinical trials of a new​ vaccine, monkeys 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 first​ dose, 114 of 722 subjects in the experimental group​ (group 1) experienced fever as a side effect. After the first​ dose, 71 of 609 of the subjects in the control group​ (group 2) experienced fever as a side effect. Construct a 99 ​% confidence interval for the difference between the two population​ proportions, p 1 minus p 2 . Use x 1 equals 114​, n 1 equals 722​, x 2 equals 71​, and n 2 equals 609 . The 99 ​% confidence interval for p 1 minus p 2 is ​(nothing ​,nothing ​). ​(Use ascending order. Round to three decimal places as​ needed.)

Homework Answers

Answer #1

Values are given as,

x 1 = 114​ n 1 = 722 p1= (x1/n1) = (114/722) = 0.158
x 2 = 71 n 2 = 609 p2= (x2/n2) = (71/609) = 0.117

Z critical value of 99% = = 2.576

calculating 99% confidence interval:

Putting the values:

CI = 0.004 , 0.078

The 99% confidence interval : ( 0.004   0.078)

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In​ randomized, double-blind clinical trials of a new​ vaccine, subjects were randomly divided into two groups....
In​ randomized, double-blind clinical trials of a new​ vaccine, subjects 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 first​ dose, 107 of 724 subjects in the experimental group​ (group 1) experienced fever as a side effect. After the first​ dose, 60 of 641 of the subjects in the control group​ (group 2) experienced fever as a side effect. Construct a 95​% confidence interval...
In​ randomized, double-blind clinical trials of a new​ vaccine, children were randomly divided into two groups....
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 first​ dose, 101 of 744 subjects in the experimental group​ (group 1) experienced vomiting as a side effect. After the first​ dose, 60 of 635 of the subjects in the control group​ (group 2) experienced vomiting as a side effect. Construct a 99​% confidence interval...
In? randomized, double-blind clinical trials of a new? vaccine, children were randomly divided into two groups....
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 first? dose, 118 of 746 subjects in the experimental group? (group 1) experienced fever as a side effect. After the first? dose, 51 of 623 of the subjects in the control group? (group 2) experienced fever as a side effect. Construct a 99?% confidence interval...
In? randomized, double-blind clinical trials of a new? vaccine, infants were randomly divided into two groups....
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 first? dose, 102 of 746 subjects in the experimental group? (group 1) experienced vomiting as a side effect. After the first? dose, 66 of 619 of the subjects in the control group? (group 2) experienced vomiting as a side effect. Construct a 95?% confidence interval...
A test is conducted in order to find if there is a difference at the α=0.01...
A test is conducted in order to find if there is a difference at the α=0.01 level of significance. In​ some 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 first dose, 67 of 607 subjects in the experimental group (group 1) experienced fever as a side effect. After the first dose, 109 of 728...
Zoloft is a drug used to treat obsessive-compulsive disorder (OCD). In randomized, double-blind clinical trials, 926...
Zoloft is a drug used to treat obsessive-compulsive disorder (OCD). In randomized, double-blind clinical trials, 926 patients diagnosed with OCD were randomly divided into two groups. Subjects in group 1 (experimental group) received 200 milligrams per day (mg/day) of Zoloft, while subjects n group 2 (control group) received a placebo. Of the 553 subjects in the experimental group, 77 experienced dry mouth as a side effect. Of the 373 subjects in the control group, 34 experienced dry mouth as a...
Zoloft is a drug used to treat obsessive-compulsive disorder (OCD). In randomized, double-blind clinical trials, 926...
Zoloft is a drug used to treat obsessive-compulsive disorder (OCD). In randomized, double-blind clinical trials, 926 patients diagnosed with OCD were randomly divided into two groups. Subjects in group 1 (experimental group) received 200 milligrams per day (mg/day) of Zoloft, while subjects n group 2 (control group) received a placebo. Of the 553 subjects in the experimental group, 77 experienced dry mouth as a side effect. Of the 373 subjects in the control group, 34 experienced dry mouth as a...
In clinical trials of a​ medication, 2128 subjects were divided into two groups. The 1585 subjects...
In clinical trials of a​ medication, 2128 subjects were divided into two groups. The 1585 subjects in group 1 received the medication. The 543 in group 2 received a placebo. Of the 1585 subjects in group​ 1, 50 experienced dizziness as a side effect. In group​ 2, 17 experienced dizziness as a side effect. To test whether the proportion experiencing dizziness in group 1 is greater than that in group​ 2, the researchers entered the data into statistical software and...
In a​ randomized, double-blind​ experiment, 120 babies were randomly divided into a treatment group (n1 =60)...
In a​ randomized, double-blind​ experiment, 120 babies were randomly divided into a treatment group (n1 =60) and a control group ( n2= 60 right). After the​ study, the treatment group had a mean serum retinol concentration of 47.35 micrograms per deciliter (ug/ dL) with a standard deviation of 17.26 ug/dL​, while the control group had a mean serum retinol concentration of 14.72 ug/dL with a standard deviation of 14.21 ug/ dL. Does the treatment group have a higher standard deviation...
a doctor released the results of clinical trails for a vaccine to prevent a disease. in...
a doctor released the results of clinical trails for a vaccine to prevent a disease. in these clinical trials, 20,000 children were randomly divided in two groups. the subject in group 1 were given the vaccine, while subjects in group 2 were given the placebo. of the 10,000 children in the experimental group, 230 developed the disease. of the 10,000 children in the control group, 480 developed the disease. estimate the difference in the proportion of the children who got...