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7.1.3: Hypothesis test for a population proportion. Jump to level 1 A software company is interested in improving customer satisfaction rate from the 64% currently

7.1.3: Hypothesis test for a population proportion.

Jump to level 1

A software company is interested in improving customer satisfaction rate from the 64% currently claimed. The company sponsored a survey of 168 customers and found that 115 customers were satisfied.

What is the test statistic z?

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