STA408 Midterm Quiz by Gujjar

Sta 408 · Mid term quiz for preparation; · ( Searching file) · Regard Gujjar gujjar · Please If any mistake forgive me

Q1. Blocking refers to

1. Hetrogeneous group of experimental units
2. None of these
3. Homogeneous group of experimental units
4. Binding of homogeneous and heterogeneous experimental units in a group

Correct answer: Homogeneous group of experimental units

Q2. if the total degrees of freedom and between treatments in a completely randomized design are 11 and 2 respectively,the degrees of the freedom within error will be.

1. 11
2. 2
3. 3
4. 9

Correct answer: 9

Q3. A factor an experiment is

1. experiment unit
2. Controlled dependent Variable
3. controlled independent variable
4. treatments

Correct answer: controlled independent variable

Q4. The Null hypothesis in a completely randomized design is

1. Subtraction of all treatments means is equal to 1
2. addition of all treatments means is equal to 1
3. Not all treatments means are equal
4. All treatments means are equal

Correct answer: All treatments means are equal

Q5. Accepting SH_OS means that

1. The sample means are different significancy

(b)The sample variance are different from each other

(c) The sample means are approximately equal

(d) The sample variance are approximately equal

6.The Randomizes complete block design controls the variability o=in

(a)No Variability

(b)One direction

(c) Two Direction

(d) Three direction

7. The efficiency of Randomized Complete Block Design (RCBD) relativs to Completely Randomized Design (CRD) can be obtained using the formula

(a)RE(RCBD,CRD)= Estimated MSE for RCBD-2

Q3. MSE for the CR design

1. )RE(RCBD,CRD)= Estimated MSE for CR design

MSE for the RCBD

(correct)

(c) RE(RCBD,CRD)= Estimated MSE for (RCBD+CR design) MSE for the CR design

(d) RE(RCBD,CRD)= 3 Estimated MSE for CR design MSE for the RCBD +3

8.Analysis of variance is used to test the

(a)Equality of three or more population means

(b) Equlity of two population Variance

(c) Equality of three or more population variance

(d)Equality of two population means

Q9. A factor is a ……..of treatments.

1. category
2. Design layout
3. none of these
4. Experimental error

Correct answer: category

Q10. Randomized complete block design is to adjust for the missing observation.

1. Doubt full
2. Easy
3. Problematical
4. Does not allow missing observations.

Correct answer: Doubt full

Q11. The variation among identically and independently treated experimental units is defined as

1. Systematic error
2. standard error
3. experimental error
4. Random error

Correct answer: Random error

12. If there are 7 treatments with 6 Randomized complete Block design then the degrees of freedom

For treatment

(a) 8 (b) 6 (c) 5 (d) 7