Mathematics, 05.05.2020 21:28 jadkins842
A bank found that in recent years, the average monthly charge on its credit card was $1 comma 450. With an improving economy, they suspect that this amount has increased. A sample of 45 customers resulted in an average monthly charge of $1 comma 476.65 with a standard deviation of $182.79. Do these data provide statistical evidence that the average monthly charge has increased? Formulate the appropriate hypothesis test and draw a conclusion. Use a level of significance of 0.05.
Answers: 3
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A bank found that in recent years, the average monthly charge on its credit card was $1 comma 450. W...
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