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a) over 30 seconds?b)under 35secondsC)under 30 seconds or over 35 second with diagrams. And explanation thank you . The amount of time travellers at an

a) over 30 seconds?b)under 35secondsC)under 30 seconds or over 35 second with diagrams. And explanation thank you .

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The amount of time travellers at an airport spend with customs officers has a mean of A = 32 seconds and a standard deviation of o = 10 seconds. For a random sample of 40 travellers, what is the probability that their mean time spent with customs officers will be: Standard Normal Distribution Table

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