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Quiz nav Suppose a manufacturer of lunar exploration rings would like to find a confidence interval for the mean pressure tolerance in rings produced by a new technology. Which of the following are necessary assumptions (and/or conditions) to have a valid confidence 2 interval? out of 1 7 8 L The sample is random. II. The sample size is at least 30. 13 Ill. The successes/failures of the sample are greater than 5. IV. The sample comes from a normal population. 19 20 V. The data is categorical. VI. The data is numerical. 25 26 OI, II, IV, and VI 31 32 OI, III, and IV Ol, II or IV, and VI Finish atte Ol, Ill, and V Time left Ol, II, and V