QUESTION 19 Which of the following statements stated below is precisely correct/true? O A. In general, random assignment does not harbor a bias because it includes all subjects in the study. B. Completely random designed and random block designed use different randomization approach to assign the subjects into different treatment groups. O C. In a random assignment, the subjects are placed into different treatment groups. O D. Answers A and B are the right answer choices for this question. O E Answers B and C are the right answer choices for this question. QUESTION 20 Which of the following statements stated below is precisely incorrect/false? O A. In a single-blind study, both the caregivers and the subjects are unaware whether the subjects are receiving the treatment drug or the placebo. O B. Confounding effects arise when two variables are mixed and they cannot be separated from each other. C. In an experiment in which both the subjects and caregivers are unaware whether the subjects are receiving the treatment drug or the placebo, it is known as double-blind study. O D. In blinding study, placebo effect can always arise when the subjects taking the placebo drug believe that their symptom is improving. O E. All of the answers (A, B, C, and D) are the right answer choices for this question.

Q: Given a normal distribution with mean 500 and standard deviation 100. (a) The area between z =0.68…

A: Given that, mean(μ)=500 standard deviation(σ)=100

Q: 8.20+2

A:

Q: 12 X-

A: The solution is given below

Q: 6.4 3

A:

Q: 4n – 1

A:

Q: (5V3)2

A: Explanation of the solution is given below...

Q: 1. 2. 3.

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: Suppose that 103 Σ ai = 19 and i=1 103 i=1 b₁ = 18. Compute the sum.

A:

Q: 2

A: The Laplace inverse can be found by splitting the expression into three parts as it have power of 3…

Q: 8 14

A:

Q: 6. 6. х 14

A: Given: 9x=x14

Q: ne distance between the points on the gi

A:

Q: 3/8+5/24

A: The given expression is 3/8 + 5/24.Simplify the given expression as follows.

Q: Expand (a −b)4

A:

Q: 3. Graphically Subtract (-1+i) from (3+2i)

A: If we have to subtract a vector b from another vector a, graphically, then we actually are adding…

Q: Но: | ? Select an answer (please enter a decimal) H1: (? (Please enter a decimal) Select an answer…

A: The hypothesis need to be conducted to check whether recidivism rate for convicted sex offenders is…

Q: 57-24

A: Given that: 57-24

Q: 8 13

A:

Q: 2. 27

A:

Q: 6. Using the data from the contingency table, obtain the value of the test statistic of our test. 7.…

A: Step 1: Given: x1 = number of colored oranges from Skittles brand = 77 x2 = number of colored…

Q: 14 and 16

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 12 10 6. X%=

A:

Q: 2/5 +7/12

A: Please see the answer below.

Q: 12 16 5n

A: Area of triangle= (1/2) × Base × Height

Q: (NINETEEN)

A: The information provided in the are as follows :-Level of significance

Q: a)     Studies have shown that a positive association exists between educational level and annual…

A: It is an important part of statistics. It is widely used.  Regression is an important aspect in…