You have been told that your planned full factorial designed experiment is too expensive Which of the following is the PREFERRED option A Replicate the results B Use a fractional factorial design C Use aliasing and or confounding D All of the above 79 A sample size of 28 was used to test a two tail hypothesis about a population mean Which is the confidence level of the hypothesis test for a known critical value of t 2 052 Caution Think it through A 95 B 97 5 C 99 D 90 80

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Question: You have been told that your planned full-factorial designed experiment is too expensive. Which of the following is the PREFERRED option? A Replicate the results

You have been told that your planned full-factorial designed experiment is too expensive. Which of the following is the PREFERRED option?

A	Replicate the results
B	Use a fractional factorial design
C	Use aliasing and/or confounding
D	All of the above

#79

A sample size of 28 was used to test a two-tail hypothesis about a population mean. Which is the confidence level of the hypothesis test for a known critical value of t = 2.052? Caution: Think it through.

A	95%
B	97.5%
C	99%
D	90%

#80

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