Question
A canned fish manufacturing company believes that its tuna fish contains 15% pure tuna. A random sample of 150 cans of tuna is picked and
A canned fish manufacturing company believes that its tuna fish contains 15% pure tuna. A random sample of 150 cans of tuna is picked and tested for composition. [8 marks] a) What is the mean of the sample proportion? b) What is the standard deviation of the sample proportion? c) Find the probability that the sample proportion will be less than 0.10. d) Would a value of = 0.25 be considered unusual? Why?
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Understanding Public Opinion Polls
Authors: Jelke Bethlehem
1st Edition
1498769756, 9781498769754
