Statistics: Hypothesis tests: Z-test – #29083


Question: She is also concerned with the number of visual defects in the monkeys. She really wants them to look uniform. Upon inspection of random groups of monkeys she finds and catalogs the number of defects. Does this give good evidence that the proportion of defects is different for the three types of monkeys? The sample size for each is 300.

Type A Type B Type C
75 78 52

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