Question

6.Question 6 What is said to occur when the effect of one input factor on the...

6.Question 6

What is said to occur when the effect of one input factor on the output depends on the level of another input factor?

1 point

Factors

Blocking

ANOVA

Interaction

7.Question 7

When performing analysis of variance for a single factor experiment, which of the following is a required assumption?

1 point

Means are equal

Errors are equal

Variances are equal

Sample sizes are equal

8.Question 8

What test statistic is used for ANOVA?

1 point

Chi-square

F

T

Z

9.Question 9

In a full factorial experiment with 4 factors at 3 levels each, how many tests are needed?

1 point

81

12

64

16

10.Question 10

If we have 5 levels of 2 factors, with 3 replicates of each combination, how many tests would we have?

1 point

30

25

75

96

11.Question 11

Which of the following is a good reason for using a fractional factorial experiment rather than full factorial?

1 point

Blocking is needed due to the large amount of noise

It allows for studying a large number of factors with relatively few tests

It is suspected that there are many interactions present

One of the factors only has 2 levels

12.Question 12

If there are no interactions, the main effects analysis of a one-half factorial experiment yields which of the following outcomes when compared to a full factorial?

1 point

Only the full factorial has accurate results

The half factorial has half of the results

Only the half factorial has accurate results

Both have approximately the same results

13.Question 13

When performing 1-factor ANOVA, the standard null hypothesis is that the factor:

1 point

Means are equal

Means are unequal

Variances are unequal

Variances are equal

14.Question 14

Where does DOE tend to fall in the Six-sigma cycle?

1 point

Control

Improve

Analyze

Design

15.Question 15

Which of the following is not true of best practices for DOE?

1 point

It is important to work with subject matter experts

It is good to evaluate the process history

It is essential to use an even number of replications

It is recommended to use an iterative approach, starting with small or fractional designs

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

ANS 6) INTERACTION-WHEN TWO EFFECTS COMBINE IT FORMS AN INTERACTING EFFECT.

ANS 7)MEANS ARE EQUAL.

ANS 8)F STATISTIC.-THE RATIO OF TWO CHI SQUARE VARIABLES ARE TAKEN(MEAN SQUARED ERROR)

ANS 9)4*4*4=64 TESTS.(NO OF TESTS=FACTORA^LEVELS)

ANS 10) 5*5=25 TESTS

ANS11)IT IS SUSPECTED THAT THERE ARE MANY INTERACTIONS PRESENT.

ANS 13)MEANS ARE EQUAL.

ANS 14) DESIGN.

ANS 15)It is essential to use an even number of replication-IS NOT ONE OF THE BEST PRACTICES OF DOE.

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