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Question: section 117 exercise 19 question help a survey was conducted...

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Section 11.7 Exercise 19 Question Help A survey was conducted of the age (in years) of 30 randomly selected customers. The mean was 29.83 years and the standard deviation was 11.56 years. a) How large would the sample size have to be to cut the margin of error in half? b) About how large would the sample size have to be to cut the margin of error by a factor of 20? a) The new sample size should be (Round up to the nearest integer.)

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