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CHALLENGE ACTIVITY 7.1.3: Hypothesis test for a population proportion. 7A' -.:':';.I-_:-TI--.r _ -c.. v. .. -.-.._., Jump to level 1 A software company is interested

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CHALLENGE ACTIVITY 7.1.3: Hypothesis test for a population proportion. 7"\"A' -.:':';.I-_:-TI--.r _ -c.. v. .. -.-.._., Jump to level 1 A software company is interested in improving customer satisfaction rate from the 63% currently claimed. The company sponsored a survey of 100 customers and found that 72 customers were satisfied. What is the test statistic 2? Ex: 222

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