PLEASE ANSWER ALL 4 A confidence interval is calculated by: Question 13 options:

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PLEASE ANSWER ALL 4

A confidence interval is calculated by:

Question 13 options:

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Question 14 (3 points)

Acceptance sampling (defined):

Question 14 options:

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Question 15 (3 points)

Which of the following is true about a test statistic:

Question 15 options:

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Question 16 (3 points)

Relative to confidence intervals, critical values are:

Question 16 options:

a) sample mean( +/-) z score times (1.645/1.96/2.58) b) sample mean( +/-) critical value z-score times the sampling standard deviation c) sample mean (+/-) (1.645/1.96/2.58) d) sample mean (+/-) (1.645/1.96/2.58) times the area under the curve e) None of the above

Explanation / Answer

15.

a. test statistic decides we reject or accept null hypothesis upon comparison with cirictial Z / t values

b. yes. We use sample data statistic to calcute test statistic.

c. Correct. The choice of a test statistic will depend on the assumed probability model and the hypotheses under question

d. This is right answer, since the above 3 points are right

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