Question: A software company is interested in improving customer satisfaction rate from the 75 % currently claimed. The company sponsored a survey of 281 customers and
A software company is interested in improving customer satisfaction rate from the 75% currently claimed. The company sponsored a survey of 281 customers and found that 221 customers were satisfied.
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To calculate the test statistic z we need to use the formula for proportions z p P sqrtP ... View full answer
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