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Chapter 9: Q.104 (page 593)

The most important condition for sound conclusions from statistical inference is that

(a) the data come from a well-designed random sample or randomized experiment

(b) the population distribution be exactly Normal.

(c) the data contain no outliers.

(d) the sample size be no more than 10%of the population size.

(c) the sample size be at least 30.

Short Answer

Expert verified

(a) the data come from a well-designed random sample or randomized experiment.

Step by step solution

01

Step-1: Given Information

We have to find out the correct option of the most important condition for sound conclusions from statistical inference.

02

Step-2 Explanation

The most significant criterion for using a significant test is that the data from the survey or sample originates from a random sample.

Hence, the correct option is (a)

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